80921208 has 32 divisors (see below), whose sum is σ = 207239760. Its totient is φ = 26315520.

The previous prime is 80921149. The next prime is 80921237. The reversal of 80921208 is 80212908.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40135 + ... + 42102.

Almost surely, 2^80921208 is an apocalyptic number.

It is an amenable number.

80921208 is an abundant number, since it is smaller than the sum of its proper divisors (126318552).

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

80921208 is a wasteful number, since it uses less digits than its factorization.

80921208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82287 (or 82283 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 80921208 is about 8995.6216016460. The cubic root of 80921208 is about 432.5345320864.

The spelling of 80921208 in words is "eighty million, nine hundred twenty-one thousand, two hundred eight".