80939634 has 16 divisors (see below), whose sum is σ = 162607872. Its totient is φ = 26858448.

The previous prime is 80939633. The next prime is 80939657. The reversal of 80939634 is 43693908.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80939633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28909 + ... + 31584.

It is an arithmetic number, because the mean of its divisors is an integer number (10162992).

Almost surely, 2^80939634 is an apocalyptic number.

80939634 is an abundant number, since it is smaller than the sum of its proper divisors (81668238).

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

80939634 is a wasteful number, since it uses less digits than its factorization.

80939634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60721.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 80939634 is about 8996.6457082626. The cubic root of 80939634 is about 432.5673593951.

The spelling of 80939634 in words is "eighty million, nine hundred thirty-nine thousand, six hundred thirty-four".