76989015 has 32 divisors (see below), whose sum is σ = 139128000. Its totient is φ = 40383360.

The previous prime is 76989001. The next prime is 76989023. The reversal of 76989015 is 51098967.

It is not a de Polignac number, because 76989015 - 2⁴ = 76988999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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, 3561 + ... + 12909.

It is an arithmetic number, because the mean of its divisors is an integer number (4347750).

Almost surely, 2^76989015 is an apocalyptic number.

76989015 is a deficient number, since it is larger than the sum of its proper divisors (62138985).

76989015 is a wasteful number, since it uses less digits than its factorization.

76989015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9424 (or 9418 counting only the distinct ones).

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

The square root of 76989015 is about 8774.3384366002. The cubic root of 76989015 is about 425.4118545040.

The spelling of 76989015 in words is "seventy-six million, nine hundred eighty-nine thousand, fifteen".