23347643 has 4 divisors (see below), whose sum is σ = 25470168. Its totient is φ = 21225120.

The previous prime is 23347633. The next prime is 23347661. The reversal of 23347643 is 34674332.

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 23347643 - 2¹² = 23343547 is a prime.

It is a super-2 number, since 2×23347643² = 1090224867310898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23347603) 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, 1061246 + ... + 1061267.

It is an arithmetic number, because the mean of its divisors is an integer number (6367542).

Almost surely, 2^23347643 is an apocalyptic number.

23347643 is a deficient number, since it is larger than the sum of its proper divisors (2122525).

23347643 is a wasteful number, since it uses less digits than its factorization.

23347643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122524.

The product of its digits is 36288, while the sum is 32.

The square root of 23347643 is about 4831.9398795929. The cubic root of 23347643 is about 285.8123657201.

The spelling of 23347643 in words is "twenty-three million, three hundred forty-seven thousand, six hundred forty-three".