76990785 has 32 divisors (see below), whose sum is σ = 126023040. Its totient is φ = 40128000.

The previous prime is 76990783. The next prime is 76990787. The reversal of 76990785 is 58709967.

It is an interprime number because it is at equal distance from previous prime (76990783) and next prime (76990787).

It is not a de Polignac number, because 76990785 - 2¹ = 76990783 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76990783) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 134550 + ... + 135120.

It is an arithmetic number, because the mean of its divisors is an integer number (3938220).

Almost surely, 2^76990785 is an apocalyptic number.

It is an amenable number.

76990785 is a deficient number, since it is larger than the sum of its proper divisors (49032255).

76990785 is a wasteful number, since it uses less digits than its factorization.

76990785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769.

The product of its (nonzero) digits is 952560, while the sum is 51.

The square root of 76990785 is about 8774.4392983256. The cubic root of 76990785 is about 425.4151145934.

The spelling of 76990785 in words is "seventy-six million, nine hundred ninety thousand, seven hundred eighty-five".