80960990 has 32 divisors (see below), whose sum is σ = 159408000. Its totient is φ = 29360800.

The previous prime is 80960981. The next prime is 80961007. The reversal of 80960990 is 9906908.

Together with 78447010 it forms an amicable pair .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53261 + ... + 54759.

It is an arithmetic number, because the mean of its divisors is an integer number (4981500).

Almost surely, 2^80960990 is an apocalyptic number.

80960990 is a deficient number, since it is larger than the sum of its proper divisors (78447010).

80960990 is a wasteful number, since it uses less digits than its factorization.

80960990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008.

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 80960990 is about 8997.8325167787. The cubic root of 80960990 is about 432.6054004870.

The spelling of 80960990 in words is "eighty million, nine hundred sixty thousand, nine hundred ninety".