99533399 has 4 divisors (see below), whose sum is σ = 113752464. Its totient is φ = 85314336.

The previous prime is 99533393. The next prime is 99533437. The reversal of 99533399 is 99333599.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99333599 = 2927 ⋅33937.

It is a cyclic number.

It is not a de Polignac number, because 99533399 - 2⁸ = 99533143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99533393) 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, 7109522 + ... + 7109535.

It is an arithmetic number, because the mean of its divisors is an integer number (28438116).

Almost surely, 2^99533399 is an apocalyptic number.

99533399 is a deficient number, since it is larger than the sum of its proper divisors (14219065).

99533399 is a wasteful number, since it uses less digits than its factorization.

99533399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14219064.

The product of its digits is 885735, while the sum is 50.

The square root of 99533399 is about 9976.6426717609. The cubic root of 99533399 is about 463.4358342773.

The spelling of 99533399 in words is "ninety-nine million, five hundred thirty-three thousand, three hundred ninety-nine".