76891965 has 8 divisors (see below), whose sum is σ = 123027168. Its totient is φ = 41009040.

The previous prime is 76891939. The next prime is 76891973. The reversal of 76891965 is 56919867.

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

It is not a de Polignac number, because 76891965 - 2⁸ = 76891709 is a prime.

It is a super-2 number, since 2×76891965² = 11824748563122450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2563051 + ... + 2563080.

It is an arithmetic number, because the mean of its divisors is an integer number (15378396).

Almost surely, 2^76891965 is an apocalyptic number.

It is an amenable number.

76891965 is a deficient number, since it is larger than the sum of its proper divisors (46135203).

76891965 is a wasteful number, since it uses less digits than its factorization.

76891965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5126139.

The product of its digits is 816480, while the sum is 51.

The square root of 76891965 is about 8768.8063611874. The cubic root of 76891965 is about 425.2330256123.

The spelling of 76891965 in words is "seventy-six million, eight hundred ninety-one thousand, nine hundred sixty-five".