999579225 has 12 divisors (see below), whose sum is σ = 1652637776. Its totient is φ = 533108880.

The previous prime is 999579143. The next prime is 999579233. The reversal of 999579225 is 522975999.

It is not a de Polignac number, because 999579225 - 2¹³ = 999571033 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6663787 + ... + 6663936.

Almost surely, 2^999579225 is an apocalyptic number.

It is an amenable number.

999579225 is a deficient number, since it is larger than the sum of its proper divisors (653058551).

999579225 is a wasteful number, since it uses less digits than its factorization.

999579225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13327736 (or 13327731 counting only the distinct ones).

The product of its digits is 4592700, while the sum is 57.

The square root of 999579225 is about 31616.1228647663. The cubic root of 999579225 is about 999.8597219897.

The spelling of 999579225 in words is "nine hundred ninety-nine million, five hundred seventy-nine thousand, two hundred twenty-five".