99944479 has 4 divisors (see below), whose sum is σ = 105823584. Its totient is φ = 94065376.

The previous prime is 99944461. The next prime is 99944483. The reversal of 99944479 is 97444999.

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

It is a cyclic number.

It is not a de Polignac number, because 99944479 - 2⁵ = 99944447 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 (99944459) 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, 2939527 + ... + 2939560.

It is an arithmetic number, because the mean of its divisors is an integer number (26455896).

Almost surely, 2^99944479 is an apocalyptic number.

99944479 is a deficient number, since it is larger than the sum of its proper divisors (5879105).

99944479 is a wasteful number, since it uses less digits than its factorization.

99944479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5879104.

The product of its digits is 2939328, while the sum is 55.

The square root of 99944479 is about 9997.2235645703. The cubic root of 99944479 is about 464.0729655740.

The spelling of 99944479 in words is "ninety-nine million, nine hundred forty-four thousand, four hundred seventy-nine".