296809681 has 16 divisors (see below), whose sum is σ = 360167040. Its totient is φ = 238775040.

The previous prime is 296809679. The next prime is 296809703. The reversal of 296809681 is 186908692.

It is a happy number.

It is not a de Polignac number, because 296809681 - 2¹ = 296809679 is a prime.

It is a super-2 number, since 2×296809681² = 176191973470643522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (296809481) 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, 41811 + ... + 48391.

It is an arithmetic number, because the mean of its divisors is an integer number (22510440).

Almost surely, 2^296809681 is an apocalyptic number.

It is an amenable number.

296809681 is a deficient number, since it is larger than the sum of its proper divisors (63357359).

296809681 is a wasteful number, since it uses less digits than its factorization.

296809681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6984.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 296809681 is about 17228.1653405114. The cubic root of 296809681 is about 667.0514830263.

The spelling of 296809681 in words is "two hundred ninety-six million, eight hundred nine thousand, six hundred eighty-one".