12734649 has 12 divisors (see below), whose sum is σ = 19476756. Its totient is φ = 7990272.

The previous prime is 12734629. The next prime is 12734651. The reversal of 12734649 is 94643721.

12734649 is a `hidden beast` number, since 1 + 2 + 7 + 3 + 4 + 649 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11594025 + 1140624 = 3405^2 + 1068^2 .

It is not a de Polignac number, because 12734649 - 2¹³ = 12726457 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12734609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41464 + ... + 41769.

It is an arithmetic number, because the mean of its divisors is an integer number (1623063).

Almost surely, 2^12734649 is an apocalyptic number.

It is an amenable number.

12734649 is a deficient number, since it is larger than the sum of its proper divisors (6742107).

12734649 is a wasteful number, since it uses less digits than its factorization.

12734649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83256 (or 83253 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 12734649 is about 3568.5639969041. The cubic root of 12734649 is about 233.5226407012.

The spelling of 12734649 in words is "twelve million, seven hundred thirty-four thousand, six hundred forty-nine".