12987470 has 8 divisors (see below), whose sum is σ = 23377464. Its totient is φ = 5194984.

The previous prime is 12987467. The next prime is 12987497. The reversal of 12987470 is 7478921.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

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, 649364 + ... + 649383.

It is an arithmetic number, because the mean of its divisors is an integer number (2922183).

Almost surely, 2^12987470 is an apocalyptic number.

12987470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12987470 is a deficient number, since it is larger than the sum of its proper divisors (10389994).

12987470 is a wasteful number, since it uses less digits than its factorization.

12987470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298754.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 12987470 is about 3603.8132582030. The cubic root of 12987470 is about 235.0579003249.

The spelling of 12987470 in words is "twelve million, nine hundred eighty-seven thousand, four hundred seventy".