99974089 has 2 divisors, whose sum is σ = 99974090. Its totient is φ = 99974088.

The previous prime is 99974041. The next prime is 99974099. The reversal of 99974089 is 98047999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95942025 + 4032064 = 9795^2 + 2008^2 .

It is a cyclic number.

It is not a de Polignac number, because 99974089 - 2¹⁵ = 99941321 is a prime.

It is not a weakly prime, because it can be changed into another prime (99974099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49987044 + 49987045.

It is an arithmetic number, because the mean of its divisors is an integer number (49987045).

Almost surely, 2^99974089 is an apocalyptic number.

It is an amenable number.

99974089 is a deficient number, since it is larger than the sum of its proper divisors (1).

99974089 is an equidigital number, since it uses as much as digits as its factorization.

99974089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 55.

The square root of 99974089 is about 9998.7043660666. The cubic root of 99974089 is about 464.1187904955.

The spelling of 99974089 in words is "ninety-nine million, nine hundred seventy-four thousand, eighty-nine".