80907858 has 12 divisors (see below), whose sum is σ = 175300398. Its totient is φ = 26969280.

The previous prime is 80907851. The next prime is 80907881. The reversal of 80907858 is 85870908.

It can be written as a sum of positive squares in only one way, i.e., 80514729 + 393129 = 8973^2 + 627^2 .

It is a super-2 number, since 2×80907858² = 13092162972296328, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80907851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2247423 + ... + 2247458.

Almost surely, 2^80907858 is an apocalyptic number.

80907858 is an abundant number, since it is smaller than the sum of its proper divisors (94392540).

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

80907858 is a wasteful number, since it uses less digits than its factorization.

80907858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4494889 (or 4494886 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 45.

The square root of 80907858 is about 8994.8795433847. The cubic root of 80907858 is about 432.5107449412.

The spelling of 80907858 in words is "eighty million, nine hundred seven thousand, eight hundred fifty-eight".