12949087 has 4 divisors (see below), whose sum is σ = 13710816. Its totient is φ = 12187360.

The previous prime is 12949081. The next prime is 12949117. The reversal of 12949087 is 78094921.

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

It is a cyclic number.

It is not a de Polignac number, because 12949087 - 2¹⁹ = 12424799 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 (12949081) 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, 380839 + ... + 380872.

It is an arithmetic number, because the mean of its divisors is an integer number (3427704).

Almost surely, 2^12949087 is an apocalyptic number.

12949087 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12949087 is a deficient number, since it is larger than the sum of its proper divisors (761729).

12949087 is an equidigital number, since it uses as much as digits as its factorization.

12949087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761728.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 12949087 is about 3598.4839863476. The cubic root of 12949087 is about 234.8261094766.

The spelling of 12949087 in words is "twelve million, nine hundred forty-nine thousand, eighty-seven".