23671247 has 2 divisors, whose sum is σ = 23671248. Its totient is φ = 23671246.

The previous prime is 23671243. The next prime is 23671253. The reversal of 23671247 is 74217632.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23671247 - 2² = 23671243 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23671243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11835623 + 11835624.

It is an arithmetic number, because the mean of its divisors is an integer number (11835624).

Almost surely, 2^23671247 is an apocalyptic number.

23671247 is a deficient number, since it is larger than the sum of its proper divisors (1).

23671247 is an equidigital number, since it uses as much as digits as its factorization.

23671247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 32.

The square root of 23671247 is about 4865.3105759037. The cubic root of 23671247 is about 287.1267878177.

Adding to 23671247 its reverse (74217632), we get a palindrome (97888879).

The spelling of 23671247 in words is "twenty-three million, six hundred seventy-one thousand, two hundred forty-seven".