80756712 has 24 divisors (see below), whose sum is σ = 218716290. Its totient is φ = 26918880.

The previous prime is 80756651. The next prime is 80756713. The reversal of 80756712 is 21765708.

80756712 is a `hidden beast` number, since 80 + 7 + 567 + 12 = 666.

It can be written as a sum of positive squares in only one way, i.e., 75585636 + 5171076 = 8694^2 + 2274^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (80756713) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 560739 + ... + 560882.

Almost surely, 2^80756712 is an apocalyptic number.

It is an amenable number.

80756712 is an abundant number, since it is smaller than the sum of its proper divisors (137959578).

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

80756712 is a wasteful number, since it uses less digits than its factorization.

80756712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121633 (or 1121626 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 80756712 is about 8986.4738357155. The cubic root of 80756712 is about 432.2412489951.

The spelling of 80756712 in words is "eighty million, seven hundred fifty-six thousand, seven hundred twelve".