80715427 has 16 divisors (see below), whose sum is σ = 88869312. Its totient is φ = 72858240.

The previous prime is 80715421. The next prime is 80715433. The reversal of 80715427 is 72451708.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80715421) and next prime (80715433).

It is not a de Polignac number, because 80715427 - 2³ = 80715419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80715392 and 80715401.

It is not an unprimeable number, because it can be changed into a prime (80715421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144633 + ... + 145189.

It is an arithmetic number, because the mean of its divisors is an integer number (5554332).

Almost surely, 2^80715427 is an apocalyptic number.

80715427 is a deficient number, since it is larger than the sum of its proper divisors (8153885).

80715427 is a wasteful number, since it uses less digits than its factorization.

80715427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 80715427 is about 8984.1764786763. The cubic root of 80715427 is about 432.1675786613.

The spelling of 80715427 in words is "eighty million, seven hundred fifteen thousand, four hundred twenty-seven".