80870715 has 24 divisors (see below), whose sum is σ = 143967408. Its totient is φ = 41964480.

The previous prime is 80870711. The next prime is 80870719. The reversal of 80870715 is 51707808.

It is an interprime number because it is at equal distance from previous prime (80870711) and next prime (80870719).

It is not a de Polignac number, because 80870715 - 2² = 80870711 is a prime.

It is a super-2 number, since 2×80870715² = 13080145089222450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80870715.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80870711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22621 + ... + 25950.

It is an arithmetic number, because the mean of its divisors is an integer number (5998642).

Almost surely, 2^80870715 is an apocalyptic number.

80870715 is a deficient number, since it is larger than the sum of its proper divisors (63096693).

80870715 is a wasteful number, since it uses less digits than its factorization.

80870715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48619 (or 48616 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 36.

The square root of 80870715 is about 8992.8146316935. The cubic root of 80870715 is about 432.4445494527. Note that the first 3 decimals are identical.

The spelling of 80870715 in words is "eighty million, eight hundred seventy thousand, seven hundred fifteen".