80739692 has 12 divisors (see below), whose sum is σ = 154139496. Its totient is φ = 36699840.

The previous prime is 80739689. The next prime is 80739707. The reversal of 80739692 is 29693708.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 1834993 = 80739692 / (8 + 0 + 7 + 3 + 9 + 6 + 9 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 917453 + ... + 917540.

It is an arithmetic number, because the mean of its divisors is an integer number (12844958).

Almost surely, 2^80739692 is an apocalyptic number.

It is an amenable number.

80739692 is a deficient number, since it is larger than the sum of its proper divisors (73399804).

80739692 is a wasteful number, since it uses less digits than its factorization.

80739692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835008 (or 1835006 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 80739692 is about 8985.5268070381. The cubic root of 80739692 is about 432.2108809808.

The spelling of 80739692 in words is "eighty million, seven hundred thirty-nine thousand, six hundred ninety-two".