99954409 has 2 divisors, whose sum is σ = 99954410. Its totient is φ = 99954408.

The previous prime is 99954331. The next prime is 99954431. The reversal of 99954409 is 90445999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99940009 + 14400 = 9997^2 + 120^2 .

It is a cyclic number.

It is not a de Polignac number, because 99954409 - 2¹⁵ = 99921641 is a prime.

It is not a weakly prime, because it can be changed into another prime (99954479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49977204 + 49977205.

It is an arithmetic number, because the mean of its divisors is an integer number (49977205).

Almost surely, 2^99954409 is an apocalyptic number.

It is an amenable number.

99954409 is a deficient number, since it is larger than the sum of its proper divisors (1).

99954409 is an equidigital number, since it uses as much as digits as its factorization.

99954409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 99954409 is about 9997.7201901233. The cubic root of 99954409 is about 464.0883344134.

The spelling of 99954409 in words is "ninety-nine million, nine hundred fifty-four thousand, four hundred nine".