80899488 has 72 divisors (see below), whose sum is σ = 231164388. Its totient is φ = 26836992.

The previous prime is 80899457. The next prime is 80899493. The reversal of 80899488 is 88499808.

80899488 is a `hidden beast` number, since 80 + 89 + 9 + 488 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 50296464 + 30603024 = 7092^2 + 5532^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73470 + ... + 74562.

Almost surely, 2^80899488 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80899488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115582194).

80899488 is an abundant number, since it is smaller than the sum of its proper divisors (150264900).

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

80899488 is a wasteful number, since it uses less digits than its factorization.

80899488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1366 (or 1355 counting only the distinct ones).

The product of its (nonzero) digits is 1327104, while the sum is 54.

The square root of 80899488 is about 8994.4142666435. The cubic root of 80899488 is about 432.4958298684.

The spelling of 80899488 in words is "eighty million, eight hundred ninety-nine thousand, four hundred eighty-eight".