80765636 has 24 divisors (see below), whose sum is σ = 162146880. Its totient is φ = 34481952.

The previous prime is 80765611. The next prime is 80765681. The reversal of 80765636 is 63656708.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 80765593 and 80765602.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2171 + ... + 12893.

It is an arithmetic number, because the mean of its divisors is an integer number (6756120).

Almost surely, 2^80765636 is an apocalyptic number.

It is an amenable number.

80765636 is an abundant number, since it is smaller than the sum of its proper divisors (81381244).

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

80765636 is a wasteful number, since it uses less digits than its factorization.

80765636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11003 (or 11001 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 80765636 is about 8986.9703460065. The cubic root of 80765636 is about 432.2571699785.

The spelling of 80765636 in words is "eighty million, seven hundred sixty-five thousand, six hundred thirty-six".