77969683 has 8 divisors (see below), whose sum is σ = 85368240. Its totient is φ = 70622880.

The previous prime is 77969669. The next prime is 77969699. The reversal of 77969683 is 38696977.

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-77969683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77969623) 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 7 ways as a sum of consecutive naturals, for example, 9748 + ... + 15841.

It is an arithmetic number, because the mean of its divisors is an integer number (10671030).

Almost surely, 2^77969683 is an apocalyptic number.

77969683 is a deficient number, since it is larger than the sum of its proper divisors (7398557).

77969683 is a wasteful number, since it uses less digits than its factorization.

77969683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25877.

The product of its digits is 3429216, while the sum is 55.

The square root of 77969683 is about 8830.0443373745. The cubic root of 77969683 is about 427.2105045034.

The spelling of 77969683 in words is "seventy-seven million, nine hundred sixty-nine thousand, six hundred eighty-three".