23705047 has 4 divisors (see below), whose sum is σ = 23757376. Its totient is φ = 23652720.

The previous prime is 23705041. The next prime is 23705053. The reversal of 23705047 is 74050732.

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

It is an interprime number because it is at equal distance from previous prime (23705041) and next prime (23705053).

It is a cyclic number.

It is not a de Polignac number, because 23705047 - 2³ = 23705039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23705041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25479 + ... + 26392.

It is an arithmetic number, because the mean of its divisors is an integer number (5939344).

Almost surely, 2^23705047 is an apocalyptic number.

23705047 is a deficient number, since it is larger than the sum of its proper divisors (52329).

23705047 is an equidigital number, since it uses as much as digits as its factorization.

23705047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52328.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 23705047 is about 4868.7829074626. The cubic root of 23705047 is about 287.2633849012.

Adding to 23705047 its reverse (74050732), we get a palindrome (97755779).

The spelling of 23705047 in words is "twenty-three million, seven hundred five thousand, forty-seven".