76997938 has 32 divisors (see below), whose sum is σ = 121927680. Its totient is φ = 36437520.

The previous prime is 76997933. The next prime is 76997939. The reversal of 76997938 is 83979967.

It is not an unprimeable number, because it can be changed into a prime (76997933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553873 + ... + 554011.

It is an arithmetic number, because the mean of its divisors is an integer number (3810240).

Almost surely, 2^76997938 is an apocalyptic number.

76997938 is a deficient number, since it is larger than the sum of its proper divisors (44929742).

76997938 is a wasteful number, since it uses less digits than its factorization.

76997938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342.

The product of its digits is 5143824, while the sum is 58.

The square root of 76997938 is about 8774.8468932512. The cubic root of 76997938 is about 425.4282888977.

The spelling of 76997938 in words is "seventy-six million, nine hundred ninety-seven thousand, nine hundred thirty-eight".