23972738 has 8 divisors (see below), whose sum is σ = 36234000. Its totient is φ = 11894740.

The previous prime is 23972719. The next prime is 23972749. The reversal of 23972738 is 83727932.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 23972695 and 23972704.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45488 + ... + 46011.

It is an arithmetic number, because the mean of its divisors is an integer number (4529250).

Almost surely, 2^23972738 is an apocalyptic number.

23972738 is a deficient number, since it is larger than the sum of its proper divisors (12261262).

23972738 is a wasteful number, since it uses less digits than its factorization.

23972738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91632.

The product of its digits is 127008, while the sum is 41.

The square root of 23972738 is about 4896.1962787454. The cubic root of 23972738 is about 288.3406543261.

The spelling of 23972738 in words is "twenty-three million, nine hundred seventy-two thousand, seven hundred thirty-eight".