99523399 has 8 divisors (see below), whose sum is σ = 100797680. Its totient is φ = 98257536.

The previous prime is 99523397. The next prime is 99523409. The reversal of 99523399 is 99332599.

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

It is a 10-Lehmer number, since φ(99523399) divides (99523399-1)¹⁰.

It is a cyclic number.

It is not a de Polignac number, because 99523399 - 2¹ = 99523397 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 (99523397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23647 + ... + 27535.

It is an arithmetic number, because the mean of its divisors is an integer number (12599710).

Almost surely, 2^99523399 is an apocalyptic number.

99523399 is a deficient number, since it is larger than the sum of its proper divisors (1274281).

99523399 is a wasteful number, since it uses less digits than its factorization.

99523399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4209.

The product of its digits is 590490, while the sum is 49.

The square root of 99523399 is about 9976.1414885716. The cubic root of 99523399 is about 463.4203134786.

The spelling of 99523399 in words is "ninety-nine million, five hundred twenty-three thousand, three hundred ninety-nine".