239979463 has 16 divisors (see below), whose sum is σ = 263070720. Its totient is φ = 217929600.

The previous prime is 239979457. The next prime is 239979499. The reversal of 239979463 is 364979932.

It is a cyclic number.

It is not a de Polignac number, because 239979463 - 2²⁵ = 206425031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 239979463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (239979403) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 346948 + ... + 347638.

It is an arithmetic number, because the mean of its divisors is an integer number (16441920).

Almost surely, 2^239979463 is an apocalyptic number.

239979463 is a deficient number, since it is larger than the sum of its proper divisors (23091257).

239979463 is a wasteful number, since it uses less digits than its factorization.

239979463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1398.

The product of its digits is 2204496, while the sum is 52.

The square root of 239979463 is about 15491.2705418245. The cubic root of 239979463 is about 621.4287747868.

The spelling of 239979463 in words is "two hundred thirty-nine million, nine hundred seventy-nine thousand, four hundred sixty-three".