999924479 has 8 divisors (see below), whose sum is σ = 1059885648. Its totient is φ = 940090240.

The previous prime is 999924473. The next prime is 999924487. The reversal of 999924479 is 974429999.

It is a happy number.

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 999924479 - 2⁴ = 999924463 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 (999924473) 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, 15257 + ... + 47250.

It is an arithmetic number, because the mean of its divisors is an integer number (132485706).

Almost surely, 2^999924479 is an apocalyptic number.

999924479 is a deficient number, since it is larger than the sum of its proper divisors (59961169).

999924479 is a wasteful number, since it uses less digits than its factorization.

999924479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63465.

The product of its digits is 13226976, while the sum is 62.

The square root of 999924479 is about 31621.5824872823. The cubic root of 999924479 is about 999.9748256996.

The spelling of 999924479 in words is "nine hundred ninety-nine million, nine hundred twenty-four thousand, four hundred seventy-nine".