23447938 has 8 divisors (see below), whose sum is σ = 37023120. Its totient is φ = 11106900.

The previous prime is 23447933. The next prime is 23447953. The reversal of 23447938 is 83974432.

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

It is a self number, because there is not a number n which added to its sum of digits gives 23447938.

It is not an unprimeable number, because it can be changed into a prime (23447933) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 308488 + ... + 308563.

It is an arithmetic number, because the mean of its divisors is an integer number (4627890).

Almost surely, 2^23447938 is an apocalyptic number.

23447938 is a deficient number, since it is larger than the sum of its proper divisors (13575182).

23447938 is a wasteful number, since it uses less digits than its factorization.

23447938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617072.

The product of its digits is 145152, while the sum is 40.

The square root of 23447938 is about 4842.3070947638. The cubic root of 23447938 is about 286.2210379856.

It can be divided in two parts, 2 and 3447938, that multiplied together give a square (6895876 = 2626²).

The spelling of 23447938 in words is "twenty-three million, four hundred forty-seven thousand, nine hundred thirty-eight".