12347664 has 40 divisors (see below), whose sum is σ = 36456000. Its totient is φ = 3527808.

The previous prime is 12347651. The next prime is 12347669. The reversal of 12347664 is 46674321.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (12347669) 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, 18039 + ... + 18710.

It is an arithmetic number, because the mean of its divisors is an integer number (911400).

Almost surely, 2^12347664 is an apocalyptic number.

12347664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

12347664 is an abundant number, since it is smaller than the sum of its proper divisors (24108336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12347664 is a wasteful number, since it uses less digits than its factorization.

12347664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36767 (or 36761 counting only the distinct ones).

The product of its digits is 24192, while the sum is 33.

The square root of 12347664 is about 3513.9243019735. The cubic root of 12347664 is about 231.1328109419.

The spelling of 12347664 in words is "twelve million, three hundred forty-seven thousand, six hundred sixty-four".