99475399 has 4 divisors (see below), whose sum is σ = 99502200. Its totient is φ = 99448600.

The previous prime is 99475379. The next prime is 99475403. The reversal of 99475399 is 99357499.

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

It is a cyclic number.

It is not a de Polignac number, because 99475399 - 2⁹ = 99474887 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 (99475309) 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, 6724 + ... + 15625.

It is an arithmetic number, because the mean of its divisors is an integer number (24875550).

Almost surely, 2^99475399 is an apocalyptic number.

99475399 is a deficient number, since it is larger than the sum of its proper divisors (26801).

99475399 is a wasteful number, since it uses less digits than its factorization.

99475399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26800.

The product of its digits is 2755620, while the sum is 55.

The square root of 99475399 is about 9973.7354586935. The cubic root of 99475399 is about 463.3457991689.

The spelling of 99475399 in words is "ninety-nine million, four hundred seventy-five thousand, three hundred ninety-nine".