80695512 has 24 divisors (see below), whose sum is σ = 218550540. Its totient is φ = 26898480.

The previous prime is 80695507. The next prime is 80695513. The reversal of 80695512 is 21559608.

It is a happy number.

80695512 is a `hidden beast` number, since 80 + 69 + 5 + 512 = 666.

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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80695513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 560314 + ... + 560457.

Almost surely, 2^80695512 is an apocalyptic number.

It is an amenable number.

80695512 is an abundant number, since it is smaller than the sum of its proper divisors (137855028).

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

80695512 is a wasteful number, since it uses less digits than its factorization.

80695512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120783 (or 1120776 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 80695512 is about 8983.0680727689. The cubic root of 80695512 is about 432.1320326878.

The spelling of 80695512 in words is "eighty million, six hundred ninety-five thousand, five hundred twelve".