23971351 has 4 divisors (see below), whose sum is σ = 24044104. Its totient is φ = 23898600.

The previous prime is 23971333. The next prime is 23971361. The reversal of 23971351 is 15317932.

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 23971351 - 2¹⁷ = 23840279 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 (23971361) 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, 35880 + ... + 36541.

It is an arithmetic number, because the mean of its divisors is an integer number (6011026).

Almost surely, 2^23971351 is an apocalyptic number.

23971351 is a deficient number, since it is larger than the sum of its proper divisors (72753).

23971351 is an equidigital number, since it uses as much as digits as its factorization.

23971351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72752.

The product of its digits is 5670, while the sum is 31.

The square root of 23971351 is about 4896.0546361331. The cubic root of 23971351 is about 288.3350933398.

The spelling of 23971351 in words is "twenty-three million, nine hundred seventy-one thousand, three hundred fifty-one".