99622723 has 4 divisors (see below), whose sum is σ = 99740368. Its totient is φ = 99505080.

The previous prime is 99622717. The next prime is 99622753. The reversal of 99622723 is 32722699.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32722699 = 43 ⋅760993.

It is a cyclic number.

It is not a de Polignac number, because 99622723 - 2²⁵ = 66068291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99622753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57543 + ... + 59248.

It is an arithmetic number, because the mean of its divisors is an integer number (24935092).

Almost surely, 2^99622723 is an apocalyptic number.

99622723 is a deficient number, since it is larger than the sum of its proper divisors (117645).

99622723 is a wasteful number, since it uses less digits than its factorization.

99622723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117644.

The product of its digits is 81648, while the sum is 40.

The square root of 99622723 is about 9981.1183241158. The cubic root of 99622723 is about 463.5744261662.

The spelling of 99622723 in words is "ninety-nine million, six hundred twenty-two thousand, seven hundred twenty-three".