12687590 has 8 divisors (see below), whose sum is σ = 22837680. Its totient is φ = 5075032.

The previous prime is 12687583. The next prime is 12687599. The reversal of 12687590 is 9578621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12687599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634370 + ... + 634389.

It is an arithmetic number, because the mean of its divisors is an integer number (2854710).

Almost surely, 2^12687590 is an apocalyptic number.

12687590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12687590 is a deficient number, since it is larger than the sum of its proper divisors (10150090).

12687590 is a wasteful number, since it uses less digits than its factorization.

12687590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1268766.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 12687590 is about 3561.9643456947. The cubic root of 12687590 is about 233.2346362628.

The spelling of 12687590 in words is "twelve million, six hundred eighty-seven thousand, five hundred ninety".