2863381 has 4 divisors (see below), whose sum is σ = 2924352. Its totient is φ = 2802412.

The previous prime is 2863369. The next prime is 2863387. The reversal of 2863381 is 1833682.

2863381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1833682 = 2 ⋅916841.

It is a cyclic number.

It is not a de Polignac number, because 2863381 - 2¹³ = 2855189 is a prime.

It is a super-2 number, since 2×2863381² = 16397901502322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2863387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30415 + ... + 30508.

It is an arithmetic number, because the mean of its divisors is an integer number (731088).

2^2863381 is an apocalyptic number.

It is an amenable number.

2863381 is a deficient number, since it is larger than the sum of its proper divisors (60971).

2863381 is an equidigital number, since it uses as much as digits as its factorization.

2863381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60970.

The product of its digits is 6912, while the sum is 31.

The square root of 2863381 is about 1692.1527708809. The cubic root of 2863381 is about 142.0015373767.

The spelling of 2863381 in words is "two million, eight hundred sixty-three thousand, three hundred eighty-one".