12654647 has 4 divisors (see below), whose sum is σ = 13399056. Its totient is φ = 11910240.

The previous prime is 12654641. The next prime is 12654659. The reversal of 12654647 is 74645621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74645621 = 809 ⋅92269.

It is a cyclic number.

It is not a de Polignac number, because 12654647 - 2⁶ = 12654583 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 (12654641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 372179 + ... + 372212.

It is an arithmetic number, because the mean of its divisors is an integer number (3349764).

Almost surely, 2^12654647 is an apocalyptic number.

12654647 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12654647 is a deficient number, since it is larger than the sum of its proper divisors (744409).

12654647 is an equidigital number, since it uses as much as digits as its factorization.

12654647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744408.

The product of its digits is 40320, while the sum is 35.

The square root of 12654647 is about 3557.3370658401. The cubic root of 12654647 is about 233.0325987287.

The spelling of 12654647 in words is "twelve million, six hundred fifty-four thousand, six hundred forty-seven".