99799723 has 4 divisors (see below), whose sum is σ = 105052360. Its totient is φ = 94547088.

The previous prime is 99799709. The next prime is 99799729. The reversal of 99799723 is 32799799.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99799723 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99799729) 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, 2626290 + ... + 2626327.

It is an arithmetic number, because the mean of its divisors is an integer number (26263090).

Almost surely, 2^99799723 is an apocalyptic number.

99799723 is a deficient number, since it is larger than the sum of its proper divisors (5252637).

99799723 is a wasteful number, since it uses less digits than its factorization.

99799723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5252636.

The product of its digits is 1928934, while the sum is 55.

The square root of 99799723 is about 9989.9811311133. The cubic root of 99799723 is about 463.8488084372.

The spelling of 99799723 in words is "ninety-nine million, seven hundred ninety-nine thousand, seven hundred twenty-three".