309799323 has 10 divisors (see below), whose sum is σ = 462786764. Its totient is φ = 206532828.

The previous prime is 309799309. The next prime is 309799339. The reversal of 309799323 is 323997903.

It is not a de Polignac number, because 309799323 - 2⁵ = 309799291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (309799393) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1912261 + ... + 1912422.

Almost surely, 2^309799323 is an apocalyptic number.

309799323 is a deficient number, since it is larger than the sum of its proper divisors (152987441).

309799323 is an equidigital number, since it uses as much as digits as its factorization.

309799323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3824695 (or 3824686 counting only the distinct ones).

The product of its (nonzero) digits is 275562, while the sum is 45.

The square root of 309799323 is about 17601.1170952301. The cubic root of 309799323 is about 676.6438747881.

The spelling of 309799323 in words is "three hundred nine million, seven hundred ninety-nine thousand, three hundred twenty-three".