89706679 has 2 divisors, whose sum is σ = 89706680. Its totient is φ = 89706678.

The previous prime is 89706629. The next prime is 89706689. The reversal of 89706679 is 97660798.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-89706679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89706629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44853339 + 44853340.

It is an arithmetic number, because the mean of its divisors is an integer number (44853340).

Almost surely, 2^89706679 is an apocalyptic number.

89706679 is a deficient number, since it is larger than the sum of its proper divisors (1).

89706679 is an equidigital number, since it uses as much as digits as its factorization.

89706679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 89706679 is about 9471.3609898472. The cubic root of 89706679 is about 447.6530966035.

The spelling of 89706679 in words is "eighty-nine million, seven hundred six thousand, six hundred seventy-nine".