99944137 has 8 divisors (see below), whose sum is σ = 102333312. Its totient is φ = 97566000.

The previous prime is 99944129. The next prime is 99944147. The reversal of 99944137 is 73144999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99944137 - 2³ = 99944129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (99944107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17262 + ... + 22312.

It is an arithmetic number, because the mean of its divisors is an integer number (12791664).

Almost surely, 2^99944137 is an apocalyptic number.

It is an amenable number.

99944137 is a deficient number, since it is larger than the sum of its proper divisors (2389175).

99944137 is a wasteful number, since it uses less digits than its factorization.

99944137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5519.

The product of its digits is 244944, while the sum is 46.

The square root of 99944137 is about 9997.2064598067. The cubic root of 99944137 is about 464.0724362363.

The spelling of 99944137 in words is "ninety-nine million, nine hundred forty-four thousand, one hundred thirty-seven".