89580977 has 2 divisors, whose sum is σ = 89580978. Its totient is φ = 89580976.

The previous prime is 89580949. The next prime is 89581027. The reversal of 89580977 is 77908598.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70492816 + 19088161 = 8396^2 + 4369^2 .

It is a cyclic number.

It is not a de Polignac number, because 89580977 - 2²⁰ = 88532401 is a prime.

It is not a weakly prime, because it can be changed into another prime (89580937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44790488 + 44790489.

It is an arithmetic number, because the mean of its divisors is an integer number (44790489).

Almost surely, 2^89580977 is an apocalyptic number.

It is an amenable number.

89580977 is a deficient number, since it is larger than the sum of its proper divisors (1).

89580977 is an equidigital number, since it uses as much as digits as its factorization.

89580977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1270080, while the sum is 53.

The square root of 89580977 is about 9464.7227640328. The cubic root of 89580977 is about 447.4439067046.

The spelling of 89580977 in words is "eighty-nine million, five hundred eighty thousand, nine hundred seventy-seven".