99449523 has 12 divisors (see below), whose sum is σ = 143919048. Its totient is φ = 66175200.

The previous prime is 99449503. The next prime is 99449527. The reversal of 99449523 is 32594499.

It is a happy number.

It is not a de Polignac number, because 99449523 - 2⁸ = 99449267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99449527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5178 + ... + 15023.

It is an arithmetic number, because the mean of its divisors is an integer number (11993254).

Almost surely, 2^99449523 is an apocalyptic number.

99449523 is a deficient number, since it is larger than the sum of its proper divisors (44469525).

99449523 is a wasteful number, since it uses less digits than its factorization.

99449523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20754 (or 20751 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 99449523 is about 9972.4381672688. The cubic root of 99449523 is about 463.3056198021.

The spelling of 99449523 in words is "ninety-nine million, four hundred forty-nine thousand, five hundred twenty-three".