23564738 has 4 divisors (see below), whose sum is σ = 35347110. Its totient is φ = 11782368.

The previous prime is 23564713. The next prime is 23564741. The reversal of 23564738 is 83746532.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 14341369 + 9223369 = 3787^2 + 3037^2 .

It is a plaindrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5891183 + ... + 5891186.

Almost surely, 2^23564738 is an apocalyptic number.

23564738 is a deficient number, since it is larger than the sum of its proper divisors (11782372).

23564738 is a wasteful number, since it uses less digits than its factorization.

23564738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11782371.

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

The square root of 23564738 is about 4854.3524799915. The cubic root of 23564738 is about 286.6954970703.

The spelling of 23564738 in words is "twenty-three million, five hundred sixty-four thousand, seven hundred thirty-eight".