99954637 has 2 divisors, whose sum is σ = 99954638. Its totient is φ = 99954636.

The previous prime is 99954623. The next prime is 99954643. The reversal of 99954637 is 73645999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59428681 + 40525956 = 7709^2 + 6366^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99954637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99954667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49977318 + 49977319.

It is an arithmetic number, because the mean of its divisors is an integer number (49977319).

Almost surely, 2^99954637 is an apocalyptic number.

It is an amenable number.

99954637 is a deficient number, since it is larger than the sum of its proper divisors (1).

99954637 is an equidigital number, since it uses as much as digits as its factorization.

99954637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1837080, while the sum is 52.

The square root of 99954637 is about 9997.7315927164. The cubic root of 99954637 is about 464.0886872811.

The spelling of 99954637 in words is "ninety-nine million, nine hundred fifty-four thousand, six hundred thirty-seven".