80638620 has 48 divisors (see below), whose sum is σ = 226201248. Its totient is φ = 21464320.

The previous prime is 80638619. The next prime is 80638627. The reversal of 80638620 is 2683608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80638627) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48442 + ... + 50078.

It is an arithmetic number, because the mean of its divisors is an integer number (4712526).

Almost surely, 2^80638620 is an apocalyptic number.

It is an amenable number.

80638620 is an abundant number, since it is smaller than the sum of its proper divisors (145562628).

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

80638620 is a wasteful number, since it uses less digits than its factorization.

80638620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470 (or 2468 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 80638620 is about 8979.9008903217. The cubic root of 80638620 is about 432.0304548146.

The spelling of 80638620 in words is "eighty million, six hundred thirty-eight thousand, six hundred twenty".