80590981 has 8 divisors (see below), whose sum is σ = 81780480. Its totient is φ = 79405872.

The previous prime is 80590973. The next prime is 80590997. The reversal of 80590981 is 18909508.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80590981 - 2³ = 80590973 is a prime.

It is a super-2 number, since 2×80590981² = 12989812437084722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80594981) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 58011 + ... + 59383.

It is an arithmetic number, because the mean of its divisors is an integer number (10222560).

Almost surely, 2^80590981 is an apocalyptic number.

It is an amenable number.

80590981 is a deficient number, since it is larger than the sum of its proper divisors (1189499).

80590981 is a wasteful number, since it uses less digits than its factorization.

80590981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2195.

The product of its (nonzero) digits is 25920, while the sum is 40.

The square root of 80590981 is about 8977.2479636022. The cubic root of 80590981 is about 431.9453609594.

The spelling of 80590981 in words is "eighty million, five hundred ninety thousand, nine hundred eighty-one".