89759977 has 2 divisors, whose sum is σ = 89759978. Its totient is φ = 89759976.

The previous prime is 89759941. The next prime is 89759981. The reversal of 89759977 is 77995798.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89472681 + 287296 = 9459^2 + 536^2 .

It is a cyclic number.

It is not a de Polignac number, because 89759977 - 2¹⁹ = 89235689 is a prime.

It is not a weakly prime, because it can be changed into another prime (89759377) 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 as a sum of consecutive naturals, namely, 44879988 + 44879989.

It is an arithmetic number, because the mean of its divisors is an integer number (44879989).

Almost surely, 2^89759977 is an apocalyptic number.

It is an amenable number.

89759977 is a deficient number, since it is larger than the sum of its proper divisors (1).

89759977 is an equidigital number, since it uses as much as digits as its factorization.

89759977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10001880, while the sum is 61.

The square root of 89759977 is about 9474.1742120356. The cubic root of 89759977 is about 447.7417347124.

The spelling of 89759977 in words is "eighty-nine million, seven hundred fifty-nine thousand, nine hundred seventy-seven".