99722849 has 8 divisors (see below), whose sum is σ = 105992640. Its totient is φ = 93555216.

The previous prime is 99722761. The next prime is 99722863. The reversal of 99722849 is 94822799.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99722849 is a prime.

It is a super-2 number, since 2×99722849² = 19889293225353602, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 99722797 and 99722806.

It is not an unprimeable number, because it can be changed into a prime (99722879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23522 + ... + 27435.

It is an arithmetic number, because the mean of its divisors is an integer number (13249080).

Almost surely, 2^99722849 is an apocalyptic number.

It is an amenable number.

99722849 is a deficient number, since it is larger than the sum of its proper divisors (6269791).

99722849 is a wasteful number, since it uses less digits than its factorization.

99722849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51079.

The product of its digits is 653184, while the sum is 50.

The square root of 99722849 is about 9986.1328350869. The cubic root of 99722849 is about 463.7296796070.

Subtracting from 99722849 its sum of digits (50), we obtain a palindrome (99722799).

It can be divided in two parts, 9972 and 2849, that added together give a palindrome (12821).

The spelling of 99722849 in words is "ninety-nine million, seven hundred twenty-two thousand, eight hundred forty-nine".