80790529 has 6 divisors (see below), whose sum is σ = 82186610. Its totient is φ = 79417776.

The previous prime is 80790503. The next prime is 80790539. The reversal of 80790529 is 92509708.

It can be written as a sum of positive squares in only one way, i.e., 75220929 + 5569600 = 8673^2 + 2360^2 .

It is not a de Polignac number, because 80790529 - 2⁷ = 80790401 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80790491 and 80790500.

It is not an unprimeable number, because it can be changed into a prime (80790539) 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, 8124 + ... + 15085.

Almost surely, 2^80790529 is an apocalyptic number.

It is an amenable number.

80790529 is a deficient number, since it is larger than the sum of its proper divisors (1396081).

80790529 is an equidigital number, since it uses as much as digits as its factorization.

80790529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23327 (or 23268 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 80790529 is about 8988.3551887984. The cubic root of 80790529 is about 432.3015744760.

The spelling of 80790529 in words is "eighty million, seven hundred ninety thousand, five hundred twenty-nine".