99722999 has 2 divisors, whose sum is σ = 99723000. Its totient is φ = 99722998.

The previous prime is 99722981. The next prime is 99723007. The reversal of 99722999 is 99922799.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 99722999 - 2⁸ = 99722743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (99712999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49861499 + 49861500.

It is an arithmetic number, because the mean of its divisors is an integer number (49861500).

Almost surely, 2^99722999 is an apocalyptic number.

99722999 is a deficient number, since it is larger than the sum of its proper divisors (1).

99722999 is an equidigital number, since it uses as much as digits as its factorization.

99722999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1653372, while the sum is 56.

The square root of 99722999 is about 9986.1403454989. The cubic root of 99722999 is about 463.7299121161.

The spelling of 99722999 in words is "ninety-nine million, seven hundred twenty-two thousand, nine hundred ninety-nine".