99423699 has 8 divisors (see below), whose sum is σ = 136147920. Its totient is φ = 64490976.

The previous prime is 99423691. The next prime is 99423703. The reversal of 99423699 is 99632499.

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

It is not a de Polignac number, because 99423699 - 2³ = 99423691 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (99423691) 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, 447744 + ... + 447965.

It is an arithmetic number, because the mean of its divisors is an integer number (17018490).

Almost surely, 2^99423699 is an apocalyptic number.

99423699 is a deficient number, since it is larger than the sum of its proper divisors (36724221).

99423699 is a wasteful number, since it uses less digits than its factorization.

99423699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895749.

The product of its digits is 944784, while the sum is 51.

The square root of 99423699 is about 9971.1433145853. The cubic root of 99423699 is about 463.2655142299.

The spelling of 99423699 in words is "ninety-nine million, four hundred twenty-three thousand, six hundred ninety-nine".