80638901 has 4 divisors (see below), whose sum is σ = 92158752. Its totient is φ = 69119052.

The previous prime is 80638891. The next prime is 80638919. The reversal of 80638901 is 10983608.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80638901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80638001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5759915 + ... + 5759928.

It is an arithmetic number, because the mean of its divisors is an integer number (23039688).

Almost surely, 2^80638901 is an apocalyptic number.

It is an amenable number.

80638901 is a deficient number, since it is larger than the sum of its proper divisors (11519851).

80638901 is a wasteful number, since it uses less digits than its factorization.

80638901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11519850.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 80638901 is about 8979.9165363605. The cubic root of 80638901 is about 432.0309566437.

The spelling of 80638901 in words is "eighty million, six hundred thirty-eight thousand, nine hundred one".