12490287 has 4 divisors (see below), whose sum is σ = 16653720. Its totient is φ = 8326856.

The previous prime is 12490273. The next prime is 12490301. The reversal of 12490287 is 78209421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78209421 = 3 ⋅26069807.

It is an interprime number because it is at equal distance from previous prime (12490273) and next prime (12490301).

It is a cyclic number.

It is not a de Polignac number, because 12490287 - 2⁸ = 12490031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12490237) 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, 2081712 + ... + 2081717.

It is an arithmetic number, because the mean of its divisors is an integer number (4163430).

Almost surely, 2^12490287 is an apocalyptic number.

12490287 is a deficient number, since it is larger than the sum of its proper divisors (4163433).

12490287 is an equidigital number, since it uses as much as digits as its factorization.

12490287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4163432.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 12490287 is about 3534.1600133554. The cubic root of 12490287 is about 232.0193144344.

The spelling of 12490287 in words is "twelve million, four hundred ninety thousand, two hundred eighty-seven".