99902441 has 2 divisors, whose sum is σ = 99902442. Its totient is φ = 99902440.

The previous prime is 99902393. The next prime is 99902503. The reversal of 99902441 is 14420999.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60902416 + 39000025 = 7804^2 + 6245^2 .

It is a cyclic number.

It is not a de Polignac number, because 99902441 - 2⁶ = 99902377 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 99902395 and 99902404.

It is not a weakly prime, because it can be changed into another prime (99902141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49951220 + 49951221.

It is an arithmetic number, because the mean of its divisors is an integer number (49951221).

Almost surely, 2^99902441 is an apocalyptic number.

It is an amenable number.

99902441 is a deficient number, since it is larger than the sum of its proper divisors (1).

99902441 is an equidigital number, since it uses as much as digits as its factorization.

99902441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 99902441 is about 9995.1208596995. The cubic root of 99902441 is about 464.0078913268.

The spelling of 99902441 in words is "ninety-nine million, nine hundred two thousand, four hundred forty-one".