11373643 has 4 divisors (see below), whose sum is σ = 11409840. Its totient is φ = 11337448.

The previous prime is 11373631. The next prime is 11373667. The reversal of 11373643 is 34637311.

It is a happy number.

11373643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34637311 = 83 ⋅417317.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11373643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11373623) 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, 17623 + ... + 18256.

It is an arithmetic number, because the mean of its divisors is an integer number (2852460).

Almost surely, 2^11373643 is an apocalyptic number.

11373643 is a deficient number, since it is larger than the sum of its proper divisors (36197).

11373643 is an equidigital number, since it uses as much as digits as its factorization.

11373643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36196.

The product of its digits is 4536, while the sum is 28.

The square root of 11373643 is about 3372.4832097432. The cubic root of 11373643 is about 224.8881287483. Note that the first 3 decimals are identical.

The spelling of 11373643 in words is "eleven million, three hundred seventy-three thousand, six hundred forty-three".