99744799 has 8 divisors (see below), whose sum is σ = 124357248. Its totient is φ = 77723160.

The previous prime is 99744793. The next prime is 99744823.

99744799 is nontrivially palindromic in base 10.

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 99744799 - 2¹⁵ = 99712031 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 (99744793) 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, 647617 + ... + 647770.

It is an arithmetic number, because the mean of its divisors is an integer number (15544656).

Almost surely, 2^99744799 is an apocalyptic number.

99744799 is a deficient number, since it is larger than the sum of its proper divisors (24612449).

99744799 is a wasteful number, since it uses less digits than its factorization.

99744799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1295405.

The product of its digits is 5143824, while the sum is 58.

The square root of 99744799 is about 9987.2317986517. The cubic root of 99744799 is about 463.7637009633.

It can be divided in two parts, 997 and 44799, that added together give a square (45796 = 214²).

The spelling of 99744799 in words is "ninety-nine million, seven hundred forty-four thousand, seven hundred ninety-nine".