12689274 has 16 divisors (see below), whose sum is σ = 27330912. Its totient is φ = 3904368.

The previous prime is 12689273. The next prime is 12689279. The reversal of 12689274 is 47298621.

It is a super-2 number, since 2×12689274² = 322035349294152, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (12689273) 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, 81264 + ... + 81419.

It is an arithmetic number, because the mean of its divisors is an integer number (1708182).

Almost surely, 2^12689274 is an apocalyptic number.

12689274 is an abundant number, since it is smaller than the sum of its proper divisors (14641638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12689274 is a wasteful number, since it uses less digits than its factorization.

12689274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162701.

The product of its digits is 48384, while the sum is 39.

The square root of 12689274 is about 3562.2007242714. The cubic root of 12689274 is about 233.2449547381.

The spelling of 12689274 in words is "twelve million, six hundred eighty-nine thousand, two hundred seventy-four".