80745800 has 24 divisors (see below), whose sum is σ = 187734450. Its totient is φ = 32298240.

The previous prime is 80745781. The next prime is 80745809. The reversal of 80745800 is 854708.

It can be written as a sum of positive squares in 3 ways, for example, as 59197636 + 21548164 = 7694^2 + 4642^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (80745809) 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, 201665 + ... + 202064.

Almost surely, 2^80745800 is an apocalyptic number.

It is an amenable number.

80745800 is an abundant number, since it is smaller than the sum of its proper divisors (106988650).

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

80745800 is a wasteful number, since it uses less digits than its factorization.

80745800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403745 (or 403736 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 32.

The square root of 80745800 is about 8985.8666805156. The cubic root of 80745800 is about 432.2217796992.

The spelling of 80745800 in words is "eighty million, seven hundred forty-five thousand, eight hundred".