80634560 has 28 divisors (see below), whose sum is σ = 192011808. Its totient is φ = 32253696.

The previous prime is 80634557. The next prime is 80634599. The reversal of 80634560 is 6543608.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125672 + ... + 126311.

Almost surely, 2^80634560 is an apocalyptic number.

80634560 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80634560 is an abundant number, since it is smaller than the sum of its proper divisors (111377248).

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

80634560 is a wasteful number, since it uses less digits than its factorization.

80634560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252000 (or 251990 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 80634560 is about 8979.6748270748. The cubic root of 80634560 is about 432.0232040577.

The spelling of 80634560 in words is "eighty million, six hundred thirty-four thousand, five hundred sixty".