239678705 has 16 divisors (see below), whose sum is σ = 328976640. Its totient is φ = 164213952.

The previous prime is 239678687. The next prime is 239678713. The reversal of 239678705 is 507876932.

239678705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 239678705 - 2⁶ = 239678641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 239678705.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57812 + ... + 61818.

It is an arithmetic number, because the mean of its divisors is an integer number (20561040).

Almost surely, 2^239678705 is an apocalyptic number.

It is an amenable number.

239678705 is a deficient number, since it is larger than the sum of its proper divisors (89297935).

239678705 is a wasteful number, since it uses less digits than its factorization.

239678705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5728.

The product of its (nonzero) digits is 635040, while the sum is 47.

The square root of 239678705 is about 15481.5601603973. The cubic root of 239678705 is about 621.1690611627.

The spelling of 239678705 in words is "two hundred thirty-nine million, six hundred seventy-eight thousand, seven hundred five".