80591490 has 64 divisors (see below), whose sum is σ = 245617920. Its totient is φ = 18420480.

The previous prime is 80591479. The next prime is 80591501. The reversal of 80591490 is 9419508.

80591490 is a `hidden beast` number, since 80 + 5 + 91 + 490 = 666.

It is an interprime number because it is at equal distance from previous prime (80591479) and next prime (80591501).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19431 + ... + 23210.

It is an arithmetic number, because the mean of its divisors is an integer number (3837780).

Almost surely, 2^80591490 is an apocalyptic number.

80591490 is an abundant number, since it is smaller than the sum of its proper divisors (165026430).

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

80591490 is a wasteful number, since it uses less digits than its factorization.

80591490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42664 (or 42658 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 80591490 is about 8977.2763130027. The cubic root of 80591490 is about 431.9462703239.

The spelling of 80591490 in words is "eighty million, five hundred ninety-one thousand, four hundred ninety".