99722799 has 32 divisors (see below), whose sum is σ = 170657280. Its totient is φ = 56880000.

The previous prime is 99722761. The next prime is 99722863.

99722799 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 99722799 - 2⁸ = 99722543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99722999) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4827 + ... + 14924.

It is an arithmetic number, because the mean of its divisors is an integer number (5333040).

Almost surely, 2^99722799 is an apocalyptic number.

99722799 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

99722799 is a deficient number, since it is larger than the sum of its proper divisors (70934481).

99722799 is a wasteful number, since it uses less digits than its factorization.

99722799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19788 (or 19782 counting only the distinct ones).

The product of its digits is 1285956, while the sum is 54.

The square root of 99722799 is about 9986.1303316149. The cubic root of 99722799 is about 463.7296021039.

The spelling of 99722799 in words is "ninety-nine million, seven hundred twenty-two thousand, seven hundred ninety-nine".