2867381 has 4 divisors (see below), whose sum is σ = 3128064. Its totient is φ = 2606700.

The previous prime is 2867377. The next prime is 2867383. The reversal of 2867381 is 1837682.

2867381 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.

It is a cyclic number.

It is not a de Polignac number, because 2867381 - 2² = 2867377 is a prime.

It is a super-2 number, since 2×2867381² = 16443747598322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2867383) 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, 130325 + ... + 130346.

It is an arithmetic number, because the mean of its divisors is an integer number (782016).

2^2867381 is an apocalyptic number.

It is an amenable number.

2867381 is a deficient number, since it is larger than the sum of its proper divisors (260683).

2867381 is a wasteful number, since it uses less digits than its factorization.

2867381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260682.

The product of its digits is 16128, while the sum is 35.

The square root of 2867381 is about 1693.3342847766. The cubic root of 2867381 is about 142.0676296248.

It can be divided in two parts, 286 and 7381, that added together give a palindrome (7667).

The spelling of 2867381 in words is "two million, eight hundred sixty-seven thousand, three hundred eighty-one".