80920659 has 8 divisors (see below), whose sum is σ = 107954640. Its totient is φ = 53916896.

The previous prime is 80920649. The next prime is 80920673. The reversal of 80920659 is 95602908.

It is a happy number.

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 80920659 - 2⁵ = 80920627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80920649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 312 + ... + 12725.

It is an arithmetic number, because the mean of its divisors is an integer number (13494330).

Almost surely, 2^80920659 is an apocalyptic number.

80920659 is a deficient number, since it is larger than the sum of its proper divisors (27033981).

80920659 is a wasteful number, since it uses less digits than its factorization.

80920659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15109.

The product of its (nonzero) digits is 38880, while the sum is 39.

The square root of 80920659 is about 8995.5910867491. The cubic root of 80920659 is about 432.5335539250.

The spelling of 80920659 in words is "eighty million, nine hundred twenty thousand, six hundred fifty-nine".