99397949 has 32 divisors (see below), whose sum is σ = 124416000. Its totient is φ = 77523264.

The previous prime is 99397939. The next prime is 99397951. The reversal of 99397949 is 94979399.

It is not a de Polignac number, because 99397949 - 2⁴ = 99397933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99397939) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 415772 + ... + 416010.

It is an arithmetic number, because the mean of its divisors is an integer number (3888000).

Almost surely, 2^99397949 is an apocalyptic number.

It is an amenable number.

99397949 is a deficient number, since it is larger than the sum of its proper divisors (25018051).

99397949 is a wasteful number, since it uses less digits than its factorization.

99397949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377.

The product of its digits is 4960116, while the sum is 59.

The square root of 99397949 is about 9969.8520049196. The cubic root of 99397949 is about 463.2255166669.

The spelling of 99397949 in words is "ninety-nine million, three hundred ninety-seven thousand, nine hundred forty-nine".