12547087 has 12 divisors (see below), whose sum is σ = 15364920. Its totient is φ = 10187856.

The previous prime is 12547081. The next prime is 12547091. The reversal of 12547087 is 78074521.

It is a happy number.

It is not a de Polignac number, because 12547087 - 2³ = 12547079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12547081) 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, 5808 + ... + 7669.

It is an arithmetic number, because the mean of its divisors is an integer number (1280410).

Almost surely, 2^12547087 is an apocalyptic number.

12547087 is a deficient number, since it is larger than the sum of its proper divisors (2817833).

12547087 is a wasteful number, since it uses less digits than its factorization.

12547087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13510 (or 13503 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 12547087 is about 3542.1867539699. The cubic root of 12547087 is about 232.3704878574.

The spelling of 12547087 in words is "twelve million, five hundred forty-seven thousand, eighty-seven".