76969990 has 32 divisors (see below), whose sum is σ = 142994304. Its totient is φ = 29808000.

The previous prime is 76969987. The next prime is 76970009. The reversal of 76969990 is 9996967.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102115 + ... + 102865.

It is an arithmetic number, because the mean of its divisors is an integer number (4468572).

Almost surely, 2^76969990 is an apocalyptic number.

76969990 is a deficient number, since it is larger than the sum of its proper divisors (66024314).

76969990 is a wasteful number, since it uses less digits than its factorization.

76969990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072.

The product of its (nonzero) digits is 1653372, while the sum is 55.

The square root of 76969990 is about 8773.2542422980. The cubic root of 76969990 is about 425.3768099924.

The spelling of 76969990 in words is "seventy-six million, nine hundred sixty-nine thousand, nine hundred ninety".