296890881 has 16 divisors (see below), whose sum is σ = 463440768. Its totient is φ = 165513600.

The previous prime is 296890837. The next prime is 296890883. The reversal of 296890881 is 188098692.

296890881 is nontrivially palindromic in base 5.

It is not a de Polignac number, because 296890881 - 2⁶ = 296890817 is a prime.

It is a super-2 number, since 2×296890881² = 176288390441912322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (296890883) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171550 + ... + 173271.

It is an arithmetic number, because the mean of its divisors is an integer number (28965048).

Almost surely, 2^296890881 is an apocalyptic number.

296890881 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

296890881 is a deficient number, since it is larger than the sum of its proper divisors (166549887).

296890881 is a wasteful number, since it uses less digits than its factorization.

296890881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344872.

The product of its (nonzero) digits is 497664, while the sum is 51.

The square root of 296890881 is about 17230.5217854829. The cubic root of 296890881 is about 667.1123072348.

The spelling of 296890881 in words is "two hundred ninety-six million, eight hundred ninety thousand, eight hundred eighty-one".