12952987 has 4 divisors (see below), whose sum is σ = 13001056. Its totient is φ = 12904920.

The previous prime is 12952969. The next prime is 12952999. The reversal of 12952987 is 78925921.

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-12952987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12952957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23628 + ... + 24169.

It is an arithmetic number, because the mean of its divisors is an integer number (3250264).

Almost surely, 2^12952987 is an apocalyptic number.

12952987 is a deficient number, since it is larger than the sum of its proper divisors (48069).

12952987 is an equidigital number, since it uses as much as digits as its factorization.

12952987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48068.

The product of its digits is 90720, while the sum is 43.

The square root of 12952987 is about 3599.0258404185. The cubic root of 12952987 is about 234.8496820497.

The spelling of 12952987 in words is "twelve million, nine hundred fifty-two thousand, nine hundred eighty-seven".