12547967 has 4 divisors (see below), whose sum is σ = 12639696. Its totient is φ = 12456240.

The previous prime is 12547957. The next prime is 12547991. The reversal of 12547967 is 76974521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12547967 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 (12547957) 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, 45659 + ... + 45932.

It is an arithmetic number, because the mean of its divisors is an integer number (3159924).

Almost surely, 2^12547967 is an apocalyptic number.

12547967 is a deficient number, since it is larger than the sum of its proper divisors (91729).

12547967 is an equidigital number, since it uses as much as digits as its factorization.

12547967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91728.

The product of its digits is 105840, while the sum is 41.

The square root of 12547967 is about 3542.3109688451. The cubic root of 12547967 is about 232.3759202272.

The spelling of 12547967 in words is "twelve million, five hundred forty-seven thousand, nine hundred sixty-seven".