23253247 has 4 divisors (see below), whose sum is σ = 23392656. Its totient is φ = 23113840.

The previous prime is 23253233. The next prime is 23253259. The reversal of 23253247 is 74235232.

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

It is a cyclic number.

It is not a de Polignac number, because 23253247 - 2¹¹ = 23251199 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 (23253227) 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, 69454 + ... + 69787.

It is an arithmetic number, because the mean of its divisors is an integer number (5848164).

Almost surely, 2^23253247 is an apocalyptic number.

23253247 is a deficient number, since it is larger than the sum of its proper divisors (139409).

23253247 is a wasteful number, since it uses less digits than its factorization.

23253247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139408.

The product of its digits is 10080, while the sum is 28.

The square root of 23253247 is about 4822.1620669571. The cubic root of 23253247 is about 285.4266596060.

Adding to 23253247 its reverse (74235232), we get a palindrome (97488479).

The spelling of 23253247 in words is "twenty-three million, two hundred fifty-three thousand, two hundred forty-seven".