12947465 has 8 divisors (see below), whose sum is σ = 15568200. Its totient is φ = 10337152.

The previous prime is 12947461. The next prime is 12947471. The reversal of 12947465 is 56474921.

It can be written as a sum of positive squares in 4 ways, for example, as 1951609 + 10995856 = 1397^2 + 3316^2 .

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 12947465 - 2² = 12947461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12947461) 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, 461 + ... + 5109.

It is an arithmetic number, because the mean of its divisors is an integer number (1946025).

Almost surely, 2^12947465 is an apocalyptic number.

It is an amenable number.

12947465 is a deficient number, since it is larger than the sum of its proper divisors (2620735).

12947465 is an equidigital number, since it uses as much as digits as its factorization.

12947465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5211.

The product of its digits is 60480, while the sum is 38.

The square root of 12947465 is about 3598.2586066040. The cubic root of 12947465 is about 234.8163043103.

The spelling of 12947465 in words is "twelve million, nine hundred forty-seven thousand, four hundred sixty-five".