99299731 has 2 divisors, whose sum is σ = 99299732. Its totient is φ = 99299730.

The previous prime is 99299729. The next prime is 99299743. The reversal of 99299731 is 13799299.

It is a weak prime.

It is an emirp because it is prime and its reverse (13799299) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99299731 - 2¹ = 99299729 is a prime.

It is a super-2 number, since 2×99299731² = 19720873153344722, which contains 22 as substring.

Together with 99299729, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (99299701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49649865 + 49649866.

It is an arithmetic number, because the mean of its divisors is an integer number (49649866).

Almost surely, 2^99299731 is an apocalyptic number.

99299731 is a deficient number, since it is larger than the sum of its proper divisors (1).

99299731 is an equidigital number, since it uses as much as digits as its factorization.

99299731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 275562, while the sum is 49.

The square root of 99299731 is about 9964.9250373498. The cubic root of 99299731 is about 463.0728908560.

The spelling of 99299731 in words is "ninety-nine million, two hundred ninety-nine thousand, seven hundred thirty-one".