80807685 has 16 divisors (see below), whose sum is σ = 147762816. Its totient is φ = 36940608.

The previous prime is 80807677. The next prime is 80807689. The reversal of 80807685 is 58670808.

It is a happy number.

It is not a de Polignac number, because 80807685 - 2³ = 80807677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80807689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384694 + ... + 384903.

It is an arithmetic number, because the mean of its divisors is an integer number (9235176).

Almost surely, 2^80807685 is an apocalyptic number.

It is an amenable number.

80807685 is a deficient number, since it is larger than the sum of its proper divisors (66955131).

80807685 is a wasteful number, since it uses less digits than its factorization.

80807685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769612.

The product of its (nonzero) digits is 107520, while the sum is 42.

The square root of 80807685 is about 8989.3094840483. The cubic root of 80807685 is about 432.3321722907.

The spelling of 80807685 in words is "eighty million, eight hundred seven thousand, six hundred eighty-five".