80715015 has 16 divisors (see below), whose sum is σ = 143493600. Its totient is φ = 43047936.

The previous prime is 80714993. The next prime is 80715029. The reversal of 80715015 is 51051708.

It is not a de Polignac number, because 80715015 - 2⁶ = 80714951 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 80715015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298810 + ... + 299079.

It is an arithmetic number, because the mean of its divisors is an integer number (8968350).

Almost surely, 2^80715015 is an apocalyptic number.

80715015 is a deficient number, since it is larger than the sum of its proper divisors (62778585).

80715015 is a wasteful number, since it uses less digits than its factorization.

80715015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597903 (or 597897 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 27.

The square root of 80715015 is about 8984.1535494447. The cubic root of 80715015 is about 432.1668433481.

The spelling of 80715015 in words is "eighty million, seven hundred fifteen thousand, fifteen".