76805919 has 12 divisors (see below), whose sum is σ = 112598616. Its totient is φ = 50439312.

The previous prime is 76805903. The next prime is 76806031. The reversal of 76805919 is 91950867.

It is not a de Polignac number, because 76805919 - 2⁴ = 76805903 is a prime.

It is a super-2 number, since 2×76805919² = 11798298386869122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76805219) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 63084 + ... + 64289.

It is an arithmetic number, because the mean of its divisors is an integer number (9383218).

Almost surely, 2^76805919 is an apocalyptic number.

76805919 is a deficient number, since it is larger than the sum of its proper divisors (35792697).

76805919 is a wasteful number, since it uses less digits than its factorization.

76805919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127446 (or 127443 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 45.

The square root of 76805919 is about 8763.8986187655. The cubic root of 76805919 is about 425.0743473163.

The spelling of 76805919 in words is "seventy-six million, eight hundred five thousand, nine hundred nineteen".