80504089 has 2 divisors, whose sum is σ = 80504090. Its totient is φ = 80504088.

The previous prime is 80504069. The next prime is 80504111. The reversal of 80504089 is 98040508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79798489 + 705600 = 8933^2 + 840^2 .

It is a cyclic number.

It is not a de Polignac number, because 80504089 - 2²⁵ = 46949657 is a prime.

It is a nialpdrome in base 14.

It is not a weakly prime, because it can be changed into another prime (80504059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40252044 + 40252045.

It is an arithmetic number, because the mean of its divisors is an integer number (40252045).

Almost surely, 2^80504089 is an apocalyptic number.

It is an amenable number.

80504089 is a deficient number, since it is larger than the sum of its proper divisors (1).

80504089 is an equidigital number, since it uses as much as digits as its factorization.

80504089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 80504089 is about 8972.4070906307. The cubic root of 80504089 is about 431.7900661073.

The spelling of 80504089 in words is "eighty million, five hundred four thousand, eighty-nine".