80870960 has 40 divisors (see below), whose sum is σ = 192405840. Its totient is φ = 31594752.

The previous prime is 80870953. The next prime is 80870969. The reversal of 80870960 is 6907808.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×80870960² = 13080224342643200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80870969) 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, 8315 + ... + 15194.

It is an arithmetic number, because the mean of its divisors is an integer number (4810146).

Almost surely, 2^80870960 is an apocalyptic number.

80870960 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80870960 is an abundant number, since it is smaller than the sum of its proper divisors (111534880).

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

80870960 is a wasteful number, since it uses less digits than its factorization.

80870960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23565 (or 23559 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 80870960 is about 8992.8282536697. The cubic root of 80870960 is about 432.4449861530. Note that the first 3 decimals are identical.

The spelling of 80870960 in words is "eighty million, eight hundred seventy thousand, nine hundred sixty".