99749492 has 12 divisors (see below), whose sum is σ = 174636000. Its totient is φ = 49853496.

The previous prime is 99749491. The next prime is 99749513. The reversal of 99749492 is 29494799.

It is a happy number.

It is a super-2 number, since 2×99749492² = 19899922308516128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99749491) 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, 10433 + ... + 17559.

It is an arithmetic number, because the mean of its divisors is an integer number (14553000).

Almost surely, 2^99749492 is an apocalyptic number.

It is an amenable number.

99749492 is a deficient number, since it is larger than the sum of its proper divisors (74886508).

99749492 is a wasteful number, since it uses less digits than its factorization.

99749492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10630 (or 10628 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 53.

The square root of 99749492 is about 9987.4667458771. The cubic root of 99749492 is about 463.7709742211.

The spelling of 99749492 in words is "ninety-nine million, seven hundred forty-nine thousand, four hundred ninety-two".