76991995 has 8 divisors (see below), whose sum is σ = 92553984. Its totient is φ = 61484544.

The previous prime is 76991989. The next prime is 76992011. The reversal of 76991995 is 59919967.

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

It is a cyclic number.

It is not a de Polignac number, because 76991995 - 2⁷ = 76991867 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10459 + ... + 16228.

It is an arithmetic number, because the mean of its divisors is an integer number (11569248).

Almost surely, 2^76991995 is an apocalyptic number.

76991995 is a deficient number, since it is larger than the sum of its proper divisors (15561989).

76991995 is a wasteful number, since it uses less digits than its factorization.

76991995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27269.

The product of its digits is 1377810, while the sum is 55.

The square root of 76991995 is about 8774.5082483294. The cubic root of 76991995 is about 425.4173432133.

The spelling of 76991995 in words is "seventy-six million, nine hundred ninety-one thousand, nine hundred ninety-five".