89105677 has 2 divisors, whose sum is σ = 89105678. Its totient is φ = 89105676.

The previous prime is 89105659. The next prime is 89105683. The reversal of 89105677 is 77650198.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88566921 + 538756 = 9411^2 + 734^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89105677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89105617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44552838 + 44552839.

It is an arithmetic number, because the mean of its divisors is an integer number (44552839).

Almost surely, 2^89105677 is an apocalyptic number.

It is an amenable number.

89105677 is a deficient number, since it is larger than the sum of its proper divisors (1).

89105677 is an equidigital number, since it uses as much as digits as its factorization.

89105677 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 89105677 is about 9439.5803402482. The cubic root of 89105677 is about 446.6511515984.

The spelling of 89105677 in words is "eighty-nine million, one hundred five thousand, six hundred seventy-seven".