80015715 has 64 divisors (see below), whose sum is σ = 154828800. Its totient is φ = 38973312.

The previous prime is 80015671. The next prime is 80015729. The reversal of 80015715 is 51751008.

It is not a de Polignac number, because 80015715 - 2¹⁰ = 80014691 is a prime.

It is a super-2 number, since 2×80015715² = 12805029293922450, which contains 22 as substring.

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

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 63 ways as a sum of consecutive naturals, for example, 222706 + ... + 223064.

It is an arithmetic number, because the mean of its divisors is an integer number (2419200).

Almost surely, 2^80015715 is an apocalyptic number.

80015715 is a deficient number, since it is larger than the sum of its proper divisors (74813085).

80015715 is a wasteful number, since it uses less digits than its factorization.

80015715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513 (or 507 counting only the distinct ones).

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

The square root of 80015715 is about 8945.1503620677. The cubic root of 80015715 is about 430.9151502768.

The spelling of 80015715 in words is "eighty million, fifteen thousand, seven hundred fifteen".