99902393 has 2 divisors, whose sum is σ = 99902394. Its totient is φ = 99902392.

The previous prime is 99902389. The next prime is 99902441. The reversal of 99902393 is 39320999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50523664 + 49378729 = 7108^2 + 7027^2 .

It is a cyclic number.

It is not a de Polignac number, because 99902393 - 2² = 99902389 is a prime.

It is not a weakly prime, because it can be changed into another prime (99902093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49951196 + 49951197.

It is an arithmetic number, because the mean of its divisors is an integer number (49951197).

Almost surely, 2^99902393 is an apocalyptic number.

It is an amenable number.

99902393 is a deficient number, since it is larger than the sum of its proper divisors (1).

99902393 is an equidigital number, since it uses as much as digits as its factorization.

99902393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 118098, while the sum is 44.

The square root of 99902393 is about 9995.1184585276. The cubic root of 99902393 is about 464.0078170131.

The spelling of 99902393 in words is "ninety-nine million, nine hundred two thousand, three hundred ninety-three".