23279963 has 4 divisors (see below), whose sum is σ = 26605680. Its totient is φ = 19954248.

The previous prime is 23279951. The next prime is 23279981. The reversal of 23279963 is 36997232.

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 23279963 - 2⁴ = 23279947 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23279963.

It is not an unprimeable number, because it can be changed into a prime (23279363) 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, 1662848 + ... + 1662861.

It is an arithmetic number, because the mean of its divisors is an integer number (6651420).

Almost surely, 2^23279963 is an apocalyptic number.

23279963 is a deficient number, since it is larger than the sum of its proper divisors (3325717).

23279963 is an equidigital number, since it uses as much as digits as its factorization.

23279963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3325716.

The product of its digits is 122472, while the sum is 41.

The square root of 23279963 is about 4824.9313984760. The cubic root of 23279963 is about 285.5359280760.

It can be divided in two parts, 23279 and 963, that added together give a palindrome (24242).

The spelling of 23279963 in words is "twenty-three million, two hundred seventy-nine thousand, nine hundred sixty-three".