79715512 has 8 divisors (see below), whose sum is σ = 149466600. Its totient is φ = 39857752.

The previous prime is 79715497. The next prime is 79715513. The reversal of 79715512 is 21551797.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79715513) 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 as a sum of consecutive naturals, namely, 4982212 + ... + 4982227.

It is an arithmetic number, because the mean of its divisors is an integer number (18683325).

Almost surely, 2^79715512 is an apocalyptic number.

It is an amenable number.

79715512 is a deficient number, since it is larger than the sum of its proper divisors (69751088).

79715512 is a wasteful number, since it uses less digits than its factorization.

79715512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9964445 (or 9964441 counting only the distinct ones).

The product of its digits is 22050, while the sum is 37.

The square root of 79715512 is about 8928.3543836476. The cubic root of 79715512 is about 430.3755723573.

The spelling of 79715512 in words is "seventy-nine million, seven hundred fifteen thousand, five hundred twelve".