99423399 has 8 divisors (see below), whose sum is σ = 132626032. Its totient is φ = 66251520.

The previous prime is 99423391. The next prime is 99423407. The reversal of 99423399 is 99332499.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (99423391) and next prime (99423407).

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

It is not a de Polignac number, because 99423399 - 2³ = 99423391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99423391) 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, 1389 + ... + 14169.

It is an arithmetic number, because the mean of its divisors is an integer number (16578254).

Almost surely, 2^99423399 is an apocalyptic number.

99423399 is a deficient number, since it is larger than the sum of its proper divisors (33202633).

99423399 is a wasteful number, since it uses less digits than its factorization.

99423399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15377.

The product of its digits is 472392, while the sum is 48.

The square root of 99423399 is about 9971.1282711637. The cubic root of 99423399 is about 463.2650482786.

The spelling of 99423399 in words is "ninety-nine million, four hundred twenty-three thousand, three hundred ninety-nine".