80697018 has 32 divisors (see below), whose sum is σ = 169091712. Its totient is φ = 25625600.

The previous prime is 80697007. The next prime is 80697031. The reversal of 80697018 is 81079608.

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, 37738 + ... + 39818.

It is an arithmetic number, because the mean of its divisors is an integer number (5284116).

Almost surely, 2^80697018 is an apocalyptic number.

80697018 is an abundant number, since it is smaller than the sum of its proper divisors (88394694).

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

80697018 is a wasteful number, since it uses less digits than its factorization.

80697018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2390.

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 80697018 is about 8983.1518967454. The cubic root of 80697018 is about 432.1347209282.

The spelling of 80697018 in words is "eighty million, six hundred ninety-seven thousand, eighteen".