79719516 has 36 divisors (see below), whose sum is σ = 212121000. Its totient is φ = 25174368.

The previous prime is 79719509. The next prime is 79719527. The reversal of 79719516 is 61591797.

It is a tau number, because it is divible by the number of its divisors (36).

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 11 ways as a sum of consecutive naturals, for example, 57591 + ... + 58958.

It is an arithmetic number, because the mean of its divisors is an integer number (5892250).

Almost surely, 2^79719516 is an apocalyptic number.

79719516 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

79719516 is an abundant number, since it is smaller than the sum of its proper divisors (132401484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

79719516 is a wasteful number, since it uses less digits than its factorization.

79719516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116578 (or 116573 counting only the distinct ones).

The product of its digits is 119070, while the sum is 45.

The square root of 79719516 is about 8928.5786102828. The cubic root of 79719516 is about 430.3827779601.

The spelling of 79719516 in words is "seventy-nine million, seven hundred nineteen thousand, five hundred sixteen".