12499487 has 16 divisors (see below), whose sum is σ = 16783872. Its totient is φ = 8989920.

The previous prime is 12499481. The next prime is 12499519. The reversal of 12499487 is 78499421.

It is a cyclic number.

It is not a de Polignac number, because 12499487 - 2¹⁴ = 12483103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12499481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5243 + ... + 7244.

It is an arithmetic number, because the mean of its divisors is an integer number (1048992).

Almost surely, 2^12499487 is an apocalyptic number.

12499487 is a deficient number, since it is larger than the sum of its proper divisors (4284385).

12499487 is a wasteful number, since it uses less digits than its factorization.

12499487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12518.

The product of its digits is 145152, while the sum is 44.

The square root of 12499487 is about 3535.4613560326. The cubic root of 12499487 is about 232.0762667904.

The spelling of 12499487 in words is "twelve million, four hundred ninety-nine thousand, four hundred eighty-seven".