23967623 has 4 divisors (see below), whose sum is σ = 23993880. Its totient is φ = 23941368.

The previous prime is 23967617. The next prime is 23967649. The reversal of 23967623 is 32676932.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23967623 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 (23967653) 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, 11708 + ... + 13601.

It is an arithmetic number, because the mean of its divisors is an integer number (5998470).

Almost surely, 2^23967623 is an apocalyptic number.

23967623 is a deficient number, since it is larger than the sum of its proper divisors (26257).

23967623 is an equidigital number, since it uses as much as digits as its factorization.

23967623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26256.

The product of its digits is 81648, while the sum is 38.

The square root of 23967623 is about 4895.6739066241. The cubic root of 23967623 is about 288.3201453719.

The spelling of 23967623 in words is "twenty-three million, nine hundred sixty-seven thousand, six hundred twenty-three".