80591368 has 48 divisors (see below), whose sum is σ = 178534800. Its totient is φ = 33808320.

The previous prime is 80591359. The next prime is 80591389. The reversal of 80591368 is 86319508.

It is a happy number.

It is a super-2 number, since 2×80591368² = 12989937192222848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 80591368.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12163 + ... + 17581.

It is an arithmetic number, because the mean of its divisors is an integer number (3719475).

Almost surely, 2^80591368 is an apocalyptic number.

80591368 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80591368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89267400).

80591368 is an abundant number, since it is smaller than the sum of its proper divisors (97943432).

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

80591368 is a wasteful number, since it uses less digits than its factorization.

80591368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5462 (or 5445 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 80591368 is about 8977.2695180662. The cubic root of 80591368 is about 431.9460523626.

The spelling of 80591368 in words is "eighty million, five hundred ninety-one thousand, three hundred sixty-eight".