89997707 has 2 divisors, whose sum is σ = 89997708. Its totient is φ = 89997706.

The previous prime is 89997697. The next prime is 89997709. The reversal of 89997707 is 70779998.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 89997707 - 2⁸ = 89997451 is a prime.

Together with 89997709, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (89997709) 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, 44998853 + 44998854.

It is an arithmetic number, because the mean of its divisors is an integer number (44998854).

Almost surely, 2^89997707 is an apocalyptic number.

89997707 is a deficient number, since it is larger than the sum of its proper divisors (1).

89997707 is an equidigital number, since it uses as much as digits as its factorization.

89997707 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000376, while the sum is 56.

The square root of 89997707 is about 9486.7121280241. The cubic root of 89997707 is about 448.1366687489.

The spelling of 89997707 in words is "eighty-nine million, nine hundred ninety-seven thousand, seven hundred seven".