76996840 has 16 divisors (see below), whose sum is σ = 173242980. Its totient is φ = 30798720.

The previous prime is 76996831. The next prime is 76996841. The reversal of 76996840 is 4869967.

It can be written as a sum of positive squares in 2 ways, for example, as 72148036 + 4848804 = 8494^2 + 2202^2 .

It is not an unprimeable number, because it can be changed into a prime (76996841) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 962421 + ... + 962500.

Almost surely, 2^76996840 is an apocalyptic number.

It is an amenable number.

76996840 is an abundant number, since it is smaller than the sum of its proper divisors (96246140).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

76996840 is a wasteful number, since it uses less digits than its factorization.

76996840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924932 (or 1924928 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 76996840 is about 8774.7843278339. The cubic root of 76996840 is about 425.4262666683.

The spelling of 76996840 in words is "seventy-six million, nine hundred ninety-six thousand, eight hundred forty".