99644361 has 8 divisors (see below), whose sum is σ = 140674464. Its totient is φ = 62521920.

The previous prime is 99644357. The next prime is 99644383. The reversal of 99644361 is 16344699.

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

It is not a de Polignac number, because 99644361 - 2² = 99644357 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (99644161) 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, 976855 + ... + 976956.

It is an arithmetic number, because the mean of its divisors is an integer number (17584308).

Almost surely, 2^99644361 is an apocalyptic number.

It is an amenable number.

99644361 is a deficient number, since it is larger than the sum of its proper divisors (41030103).

99644361 is a wasteful number, since it uses less digits than its factorization.

99644361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953831.

The product of its digits is 139968, while the sum is 42.

The square root of 99644361 is about 9982.2022119370. The cubic root of 99644361 is about 463.6079864391.

The spelling of 99644361 in words is "ninety-nine million, six hundred forty-four thousand, three hundred sixty-one".