12390847 has 8 divisors (see below), whose sum is σ = 14320800. Its totient is φ = 10500864.

The previous prime is 12390839. The next prime is 12390853. The reversal of 12390847 is 74809321.

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

It is a cyclic number.

It is not a de Polignac number, because 12390847 - 2³ = 12390839 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 (12390887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9322 + ... + 10567.

It is an arithmetic number, because the mean of its divisors is an integer number (1790100).

Almost surely, 2^12390847 is an apocalyptic number.

12390847 is a deficient number, since it is larger than the sum of its proper divisors (1929953).

12390847 is an equidigital number, since it uses as much as digits as its factorization.

12390847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19985.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 12390847 is about 3520.0634937455. The cubic root of 12390847 is about 231.4019413440.

The spelling of 12390847 in words is "twelve million, three hundred ninety thousand, eight hundred forty-seven".