99654089 has 2 divisors, whose sum is σ = 99654090. Its totient is φ = 99654088.

The previous prime is 99654083. The next prime is 99654097. The reversal of 99654089 is 98045699.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 98406400 + 1247689 = 9920^2 + 1117^2 .

It is an emirp because it is prime and its reverse (98045699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99654089 - 2⁴ = 99654073 is a prime.

It is not a weakly prime, because it can be changed into another prime (99654083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49827044 + 49827045.

It is an arithmetic number, because the mean of its divisors is an integer number (49827045).

Almost surely, 2^99654089 is an apocalyptic number.

It is an amenable number.

99654089 is a deficient number, since it is larger than the sum of its proper divisors (1).

99654089 is an equidigital number, since it uses as much as digits as its factorization.

99654089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 99654089 is about 9982.6894672728. The cubic root of 99654089 is about 463.6230728647.

The spelling of 99654089 in words is "ninety-nine million, six hundred fifty-four thousand, eighty-nine".