12870239 has 8 divisors (see below), whose sum is σ = 13985280. Its totient is φ = 11799000.

The previous prime is 12870233. The next prime is 12870259. The reversal of 12870239 is 93207821.

12870239 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 12870239 - 2¹⁶ = 12804703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12870233) 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, 10337 + ... + 11514.

It is an arithmetic number, because the mean of its divisors is an integer number (1748160).

Almost surely, 2^12870239 is an apocalyptic number.

12870239 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12870239 is a deficient number, since it is larger than the sum of its proper divisors (1115041).

12870239 is a wasteful number, since it uses less digits than its factorization.

12870239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21901.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 12870239 is about 3587.5115330825. The cubic root of 12870239 is about 234.3485139611.

The spelling of 12870239 in words is "twelve million, eight hundred seventy thousand, two hundred thirty-nine".