89800079 has 2 divisors, whose sum is σ = 89800080. Its totient is φ = 89800078.

The previous prime is 89800063. The next prime is 89800133. The reversal of 89800079 is 97000898.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 89800079 - 2⁴ = 89800063 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (89800279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 44900039 + 44900040.

It is an arithmetic number, because the mean of its divisors is an integer number (44900040).

Almost surely, 2^89800079 is an apocalyptic number.

89800079 is a deficient number, since it is larger than the sum of its proper divisors (1).

89800079 is an equidigital number, since it uses as much as digits as its factorization.

89800079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 41.

The square root of 89800079 is about 9476.2903606844. The cubic root of 89800079 is about 447.8084038684.

The spelling of 89800079 in words is "eighty-nine million, eight hundred thousand, seventy-nine".