99744371 has 4 divisors (see below), whose sum is σ = 99775632. Its totient is φ = 99713112.

The previous prime is 99744301. The next prime is 99744377. The reversal of 99744371 is 17344799.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99744371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99744377) 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, 10220 + ... + 17433.

It is an arithmetic number, because the mean of its divisors is an integer number (24943908).

Almost surely, 2^99744371 is an apocalyptic number.

99744371 is a deficient number, since it is larger than the sum of its proper divisors (31261).

99744371 is a wasteful number, since it uses less digits than its factorization.

99744371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31260.

The product of its digits is 190512, while the sum is 44.

The square root of 99744371 is about 9987.2103712698. The cubic root of 99744371 is about 463.7630376333.

The spelling of 99744371 in words is "ninety-nine million, seven hundred forty-four thousand, three hundred seventy-one".