99490393 has 2 divisors, whose sum is σ = 99490394. Its totient is φ = 99490392.

The previous prime is 99490361. The next prime is 99490421. The reversal of 99490393 is 39309499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 66634569 + 32855824 = 8163^2 + 5732^2 .

It is a cyclic number.

It is not a de Polignac number, because 99490393 - 2⁵ = 99490361 is a prime.

It is not a weakly prime, because it can be changed into another prime (99490093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49745196 + 49745197.

It is an arithmetic number, because the mean of its divisors is an integer number (49745197).

Almost surely, 2^99490393 is an apocalyptic number.

It is an amenable number.

99490393 is a deficient number, since it is larger than the sum of its proper divisors (1).

99490393 is an equidigital number, since it uses as much as digits as its factorization.

99490393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 236196, while the sum is 46.

The square root of 99490393 is about 9974.4871046084. The cubic root of 99490393 is about 463.3690781503.

The spelling of 99490393 in words is "ninety-nine million, four hundred ninety thousand, three hundred ninety-three".