80860920 has 64 divisors (see below), whose sum is σ = 277240320. Its totient is φ = 18482304.

The previous prime is 80860889. The next prime is 80860931. The reversal of 80860920 is 2906808.

It is a congruent number.

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, 47292 + ... + 48971.

It is an arithmetic number, because the mean of its divisors is an integer number (4331880).

Almost surely, 2^80860920 is an apocalyptic number.

It is an amenable number.

80860920 is an abundant number, since it is smaller than the sum of its proper divisors (196379400).

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

80860920 is a wasteful number, since it uses less digits than its factorization.

80860920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96284 (or 96280 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 80860920 is about 8992.2700137396. The cubic root of 80860920 is about 432.4270896285.

The spelling of 80860920 in words is "eighty million, eight hundred sixty thousand, nine hundred twenty".