13708239 has 8 divisors (see below), whose sum is σ = 19352880. Its totient is φ = 8601216.

The previous prime is 13708217. The next prime is 13708243. The reversal of 13708239 is 93280731.

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

It is not a de Polignac number, because 13708239 - 2¹⁵ = 13675471 is a prime.

It is a super-2 number, since 2×13708239² = 375831632962242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13708339) 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, 134344 + ... + 134445.

It is an arithmetic number, because the mean of its divisors is an integer number (2419110).

Almost surely, 2^13708239 is an apocalyptic number.

13708239 is a deficient number, since it is larger than the sum of its proper divisors (5644641).

13708239 is a wasteful number, since it uses less digits than its factorization.

13708239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268809.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 13708239 is about 3702.4639093447. The cubic root of 13708239 is about 239.3282081254.

The spelling of 13708239 in words is "thirteen million, seven hundred eight thousand, two hundred thirty-nine".