12373643 has 4 divisors (see below), whose sum is σ = 12636960. Its totient is φ = 12110328.

The previous prime is 12373639. The next prime is 12373661. The reversal of 12373643 is 34637321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12373643 - 2² = 12373639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12373243) 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, 131588 + ... + 131681.

It is an arithmetic number, because the mean of its divisors is an integer number (3159240).

Almost surely, 2^12373643 is an apocalyptic number.

12373643 is a deficient number, since it is larger than the sum of its proper divisors (263317).

12373643 is an equidigital number, since it uses as much as digits as its factorization.

12373643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263316.

The product of its digits is 9072, while the sum is 29.

The square root of 12373643 is about 3517.6189389984. The cubic root of 12373643 is about 231.2947955101.

The spelling of 12373643 in words is "twelve million, three hundred seventy-three thousand, six hundred forty-three".