2963881 has 2 divisors, whose sum is σ = 2963882. Its totient is φ = 2963880.

The previous prime is 2963869. The next prime is 2963903. The reversal of 2963881 is 1883692.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2752281 + 211600 = 1659^2 + 460^2 .

It is a cyclic number.

It is not a de Polignac number, because 2963881 - 2¹⁵ = 2931113 is a prime.

It is a super-2 number, since 2×2963881² = 17569181164322, which contains 22 as substring.

2963881 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2963881.

It is not a weakly prime, because it can be changed into another prime (2963281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1481940 + 1481941.

It is an arithmetic number, because the mean of its divisors is an integer number (1481941).

2^2963881 is an apocalyptic number.

It is an amenable number.

2963881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2963881 is an equidigital number, since it uses as much as digits as its factorization.

2963881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 2963881 is about 1721.5925766569. The cubic root of 2963881 is about 143.6438116850.

It can be divided in two parts, 2963 and 881, that added together give a square (3844 = 62²).

The spelling of 2963881 in words is "two million, nine hundred sixty-three thousand, eight hundred eighty-one".