80897872 has 20 divisors (see below), whose sum is σ = 170989056. Its totient is φ = 36771680.

The previous prime is 80897867. The next prime is 80897893. The reversal of 80897872 is 27879808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 229648 + ... + 229999.

Almost surely, 2^80897872 is an apocalyptic number.

It is an amenable number.

80897872 is an abundant number, since it is smaller than the sum of its proper divisors (90091184).

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

80897872 is a wasteful number, since it uses less digits than its factorization.

80897872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459666 (or 459660 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 49.

The square root of 80897872 is about 8994.3244326631. The cubic root of 80897872 is about 432.4929500895.

The spelling of 80897872 in words is "eighty million, eight hundred ninety-seven thousand, eight hundred seventy-two".