99404079 has 8 divisors (see below), whose sum is σ = 133383600. Its totient is φ = 65846976.

The previous prime is 99404077. The next prime is 99404093. The reversal of 99404079 is 97040499.

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

It is not a de Polignac number, because 99404079 - 2¹ = 99404077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 99404079.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99404077) 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, 105054 + ... + 105995.

It is an arithmetic number, because the mean of its divisors is an integer number (16672950).

Almost surely, 2^99404079 is an apocalyptic number.

99404079 is a deficient number, since it is larger than the sum of its proper divisors (33979521).

99404079 is a wasteful number, since it uses less digits than its factorization.

99404079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211209.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 99404079 is about 9970.1594270102. The cubic root of 99404079 is about 463.2350390433.

The spelling of 99404079 in words is "ninety-nine million, four hundred four thousand, seventy-nine".