23427047 has 12 divisors (see below), whose sum is σ = 27499536. Its totient is φ = 19897920.

The previous prime is 23427029. The next prime is 23427049. The reversal of 23427047 is 74072432.

It is not a de Polignac number, because 23427047 - 2¹² = 23422951 is a prime.

It is a super-2 number, since 2×23427047² = 1097653062280418, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23427049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3422 + ... + 7652.

It is an arithmetic number, because the mean of its divisors is an integer number (2291628).

Almost surely, 2^23427047 is an apocalyptic number.

23427047 is a deficient number, since it is larger than the sum of its proper divisors (4072489).

23427047 is a wasteful number, since it uses less digits than its factorization.

23427047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4358 (or 4351 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 23427047 is about 4840.1494811627. The cubic root of 23427047 is about 286.1360096079.

Adding to 23427047 its reverse (74072432), we get a palindrome (97499479).

The spelling of 23427047 in words is "twenty-three million, four hundred twenty-seven thousand, forty-seven".