23445947 has 16 divisors (see below), whose sum is σ = 28242432. Its totient is φ = 19029120.

The previous prime is 23445887. The next prime is 23445953. The reversal of 23445947 is 74954432.

It is a cyclic number.

It is not a de Polignac number, because 23445947 - 2⁶ = 23445883 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 23445947.

It is not an unprimeable number, because it can be changed into a prime (23445977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16547 + ... + 17907.

It is an arithmetic number, because the mean of its divisors is an integer number (1765152).

Almost surely, 2^23445947 is an apocalyptic number.

23445947 is a deficient number, since it is larger than the sum of its proper divisors (4796485).

23445947 is a wasteful number, since it uses less digits than its factorization.

23445947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498.

The product of its digits is 120960, while the sum is 38.

The square root of 23445947 is about 4842.1015065775. The cubic root of 23445947 is about 286.2129366021.

The spelling of 23445947 in words is "twenty-three million, four hundred forty-five thousand, nine hundred forty-seven".