76731967 has 8 divisors (see below), whose sum is σ = 83394080. Its totient is φ = 70178400.

The previous prime is 76731929. The next prime is 76732001. The reversal of 76731967 is 76913767.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76731967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76731917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25659 + ... + 28492.

It is an arithmetic number, because the mean of its divisors is an integer number (10424260).

Almost surely, 2^76731967 is an apocalyptic number.

76731967 is a deficient number, since it is larger than the sum of its proper divisors (6662113).

76731967 is a wasteful number, since it uses less digits than its factorization.

76731967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54273.

The product of its digits is 333396, while the sum is 46.

The square root of 76731967 is about 8759.6784758346. The cubic root of 76731967 is about 424.9378769636.

The spelling of 76731967 in words is "seventy-six million, seven hundred thirty-one thousand, nine hundred sixty-seven".