2956881 has 8 divisors (see below), whose sum is σ = 3958144. Its totient is φ = 1963440.

The previous prime is 2956841. The next prime is 2956897. The reversal of 2956881 is 1886592.

2956881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-2956881 is a prime.

It is a super-2 number, since 2×2956881² = 17486290496322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2956831) 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 7 ways as a sum of consecutive naturals, for example, 1006 + ... + 2631.

It is an arithmetic number, because the mean of its divisors is an integer number (494768).

2^2956881 is an apocalyptic number.

It is an amenable number.

2956881 is a deficient number, since it is larger than the sum of its proper divisors (1001263).

2956881 is a wasteful number, since it uses less digits than its factorization.

2956881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3911.

The product of its digits is 34560, while the sum is 39.

The square root of 2956881 is about 1719.5583735366. The cubic root of 2956881 is about 143.5306380777.

The spelling of 2956881 in words is "two million, nine hundred fifty-six thousand, eight hundred eighty-one".