999722499 has 8 divisors (see below), whose sum is σ = 1368989520. Its totient is φ = 648468576.

The previous prime is 999722489. The next prime is 999722527. The reversal of 999722499 is 994227999.

It is a happy number.

999722499 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 999722499 - 2²⁴ = 982945283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (999722489) 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, 4503144 + ... + 4503365.

It is an arithmetic number, because the mean of its divisors is an integer number (171123690).

Almost surely, 2^999722499 is an apocalyptic number.

999722499 is a deficient number, since it is larger than the sum of its proper divisors (369267021).

999722499 is a wasteful number, since it uses less digits than its factorization.

999722499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9006549.

The product of its digits is 6613488, while the sum is 60.

The square root of 999722499 is about 31618.3886211806. The cubic root of 999722499 is about 999.9074911090.

The spelling of 999722499 in words is "nine hundred ninety-nine million, seven hundred twenty-two thousand, four hundred ninety-nine".