23671257 has 8 divisors (see below), whose sum is σ = 31725984. Its totient is φ = 15698688.

The previous prime is 23671253. The next prime is 23671273. The reversal of 23671257 is 75217632.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23671257 - 2² = 23671253 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23671253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19863 + ... + 21020.

It is an arithmetic number, because the mean of its divisors is an integer number (3965748).

Almost surely, 2^23671257 is an apocalyptic number.

It is an amenable number.

23671257 is a deficient number, since it is larger than the sum of its proper divisors (8054727).

23671257 is a wasteful number, since it uses less digits than its factorization.

23671257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41079.

The product of its digits is 17640, while the sum is 33.

The square root of 23671257 is about 4865.3116035872. The cubic root of 23671257 is about 287.1268282502.

Adding to 23671257 its reverse (75217632), we get a palindrome (98888889).

The spelling of 23671257 in words is "twenty-three million, six hundred seventy-one thousand, two hundred fifty-seven".