23970945 has 16 divisors (see below), whose sum is σ = 40021632. Its totient is φ = 12228480.

The previous prime is 23970929. The next prime is 23970959. The reversal of 23970945 is 54907932.

It is not a de Polignac number, because 23970945 - 2⁴ = 23970929 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34396 + ... + 35085.

It is an arithmetic number, because the mean of its divisors is an integer number (2501352).

Almost surely, 2^23970945 is an apocalyptic number.

It is an amenable number.

23970945 is a deficient number, since it is larger than the sum of its proper divisors (16050687).

23970945 is a wasteful number, since it uses less digits than its factorization.

23970945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69512.

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 23970945 is about 4896.0131740019. The cubic root of 23970945 is about 288.3334654979. Note that the first 3 decimals are identical.

The spelling of 23970945 in words is "twenty-three million, nine hundred seventy thousand, nine hundred forty-five".