12874321 has 8 divisors (see below), whose sum is σ = 13680360. Its totient is φ = 12073728.

The previous prime is 12874291. The next prime is 12874327. The reversal of 12874321 is 12347821.

It can be written as a sum of positive squares in 4 ways, for example, as 193600 + 12680721 = 440^2 + 3561^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12874321 - 2¹³ = 12866129 is a prime.

It is a super-2 number, since 2×12874321² = 331496282422082, which contains 22 as substring.

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 12874321.

It is not an unprimeable number, because it can be changed into a prime (12874327) 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, 4195 + ... + 6583.

It is an arithmetic number, because the mean of its divisors is an integer number (1710045).

Almost surely, 2^12874321 is an apocalyptic number.

It is an amenable number.

12874321 is a deficient number, since it is larger than the sum of its proper divisors (806039).

12874321 is a wasteful number, since it uses less digits than its factorization.

12874321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2723.

The product of its digits is 2688, while the sum is 28.

The square root of 12874321 is about 3588.0804060110. The cubic root of 12874321 is about 234.3732871223.

The spelling of 12874321 in words is "twelve million, eight hundred seventy-four thousand, three hundred twenty-one".