80712642 has 16 divisors (see below), whose sum is σ = 161721792. Its totient is φ = 26854800.

The previous prime is 80712629. The next prime is 80712659. The reversal of 80712642 is 24621708.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8734 + ... + 15417.

It is an arithmetic number, because the mean of its divisors is an integer number (10107612).

Almost surely, 2^80712642 is an apocalyptic number.

80712642 is an abundant number, since it is smaller than the sum of its proper divisors (81009150).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

80712642 is a wasteful number, since it uses less digits than its factorization.

80712642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24713.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 80712642 is about 8984.0214826101. The cubic root of 80712642 is about 432.1626081098.

The spelling of 80712642 in words is "eighty million, seven hundred twelve thousand, six hundred forty-two".