23641047 has 12 divisors (see below), whose sum is σ = 34875360. Its totient is φ = 15425088.

The previous prime is 23641043. The next prime is 23641049. The reversal of 23641047 is 74014632.

It is not a de Polignac number, because 23641047 - 2² = 23641043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23641047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23641043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27522 + ... + 28367.

It is an arithmetic number, because the mean of its divisors is an integer number (2906280).

Almost surely, 2^23641047 is an apocalyptic number.

23641047 is a deficient number, since it is larger than the sum of its proper divisors (11234313).

23641047 is a wasteful number, since it uses less digits than its factorization.

23641047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55942 (or 55939 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 23641047 is about 4862.2059808280. The cubic root of 23641047 is about 287.0046294987.

Adding to 23641047 its reverse (74014632), we get a palindrome (97655679).

The spelling of 23641047 in words is "twenty-three million, six hundred forty-one thousand, forty-seven".