80861308 has 24 divisors (see below), whose sum is σ = 154753200. Its totient is φ = 36664320.

The previous prime is 80861293. The next prime is 80861327. The reversal of 80861308 is 80316808.

It is a super-2 number, since 2×80861308² = 13077102262941728, which contains 22 as substring.

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, 17710 + ... + 21802.

It is an arithmetic number, because the mean of its divisors is an integer number (6448050).

Almost surely, 2^80861308 is an apocalyptic number.

It is an amenable number.

80861308 is a deficient number, since it is larger than the sum of its proper divisors (73891892).

80861308 is a wasteful number, since it uses less digits than its factorization.

80861308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4557 (or 4555 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 80861308 is about 8992.2915877990. The cubic root of 80861308 is about 432.4277812747.

The spelling of 80861308 in words is "eighty million, eight hundred sixty-one thousand, three hundred eight".