99902771 has 2 divisors, whose sum is σ = 99902772. Its totient is φ = 99902770.

The previous prime is 99902653. The next prime is 99902809. The reversal of 99902771 is 17720999.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99902771 - 2¹⁸ = 99640627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99902371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49951385 + 49951386.

It is an arithmetic number, because the mean of its divisors is an integer number (49951386).

Almost surely, 2^99902771 is an apocalyptic number.

99902771 is a deficient number, since it is larger than the sum of its proper divisors (1).

99902771 is an equidigital number, since it uses as much as digits as its factorization.

99902771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 71442, while the sum is 44.

The square root of 99902771 is about 9995.1373677404. The cubic root of 99902771 is about 464.0084022334.

The spelling of 99902771 in words is "ninety-nine million, nine hundred two thousand, seven hundred seventy-one".