99749501 has 4 divisors (see below), whose sum is σ = 99789312. Its totient is φ = 99709692.

The previous prime is 99749491. The next prime is 99749513. The reversal of 99749501 is 10594799.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99749501 - 2⁶ = 99749437 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 (99749581) 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, 15875 + ... + 21248.

It is an arithmetic number, because the mean of its divisors is an integer number (24947328).

Almost surely, 2^99749501 is an apocalyptic number.

It is an amenable number.

99749501 is a deficient number, since it is larger than the sum of its proper divisors (39811).

99749501 is a wasteful number, since it uses less digits than its factorization.

99749501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39810.

The product of its (nonzero) digits is 102060, while the sum is 44.

The square root of 99749501 is about 9987.4671964417. The cubic root of 99749501 is about 463.7709881692.

The spelling of 99749501 in words is "ninety-nine million, seven hundred forty-nine thousand, five hundred one".