80826804 has 18 divisors (see below), whose sum is σ = 204312290. Its totient is φ = 26942256.

The previous prime is 80826797. The next prime is 80826839. The reversal of 80826804 is 40862808.

It can be written as a sum of positive squares in only one way, i.e., 76212900 + 4613904 = 8730^2 + 2148^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2245189 = 80826804 / (8 + 0 + 8 + 2 + 6 + 8 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1122559 + ... + 1122630.

Almost surely, 2^80826804 is an apocalyptic number.

It is an amenable number.

80826804 is an abundant number, since it is smaller than the sum of its proper divisors (123485486).

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

80826804 is a wasteful number, since it uses less digits than its factorization.

80826804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2245199 (or 2245194 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 80826804 is about 8990.3728510001. The cubic root of 80826804 is about 432.3662660241.

The spelling of 80826804 in words is "eighty million, eight hundred twenty-six thousand, eight hundred four".