12817270 has 8 divisors (see below), whose sum is σ = 23071104. Its totient is φ = 5126904.

The previous prime is 12817213. The next prime is 12817307. The reversal of 12817270 is 7271821.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640854 + ... + 640873.

It is an arithmetic number, because the mean of its divisors is an integer number (2883888).

Almost surely, 2^12817270 is an apocalyptic number.

12817270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12817270 is a deficient number, since it is larger than the sum of its proper divisors (10253834).

12817270 is a wasteful number, since it uses less digits than its factorization.

12817270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281734.

The product of its (nonzero) digits is 1568, while the sum is 28.

The square root of 12817270 is about 3580.1215063179. The cubic root of 12817270 is about 234.0265754997.

The spelling of 12817270 in words is "twelve million, eight hundred seventeen thousand, two hundred seventy".