80817015 has 16 divisors (see below), whose sum is σ = 129794400. Its totient is φ = 42940032.

The previous prime is 80816987. The next prime is 80817029. The reversal of 80817015 is 51071808.

It is not a de Polignac number, because 80817015 - 2⁶ = 80816951 is a prime.

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, 5980 + ... + 14049.

It is an arithmetic number, because the mean of its divisors is an integer number (8112150).

Almost surely, 2^80817015 is an apocalyptic number.

80817015 is a deficient number, since it is larger than the sum of its proper divisors (48977385).

80817015 is a wasteful number, since it uses less digits than its factorization.

80817015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20306.

The product of its (nonzero) digits is 2240, while the sum is 30.

The square root of 80817015 is about 8989.8284188298. The cubic root of 80817015 is about 432.3488105759.

The spelling of 80817015 in words is "eighty million, eight hundred seventeen thousand, fifteen".