76899885 has 32 divisors (see below), whose sum is σ = 125376768. Its totient is φ = 40243200.

The previous prime is 76899883. The next prime is 76899899. The reversal of 76899885 is 58899867.

It is a happy number.

It is not a de Polignac number, because 76899885 - 2¹ = 76899883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76899883) 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 31 ways as a sum of consecutive naturals, for example, 292264 + ... + 292526.

It is an arithmetic number, because the mean of its divisors is an integer number (3918024).

Almost surely, 2^76899885 is an apocalyptic number.

It is an amenable number.

76899885 is a deficient number, since it is larger than the sum of its proper divisors (48476883).

76899885 is a wasteful number, since it uses less digits than its factorization.

76899885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565.

The product of its digits is 8709120, while the sum is 60.

The square root of 76899885 is about 8769.2579503627. The cubic root of 76899885 is about 425.2476250135.

The spelling of 76899885 in words is "seventy-six million, eight hundred ninety-nine thousand, eight hundred eighty-five".