23201671 has 4 divisors (see below), whose sum is σ = 23950144. Its totient is φ = 22453200.

The previous prime is 23201657. The next prime is 23201681. The reversal of 23201671 is 17610232.

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 23201671 - 2⁷ = 23201543 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 (23201621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374190 + ... + 374251.

It is an arithmetic number, because the mean of its divisors is an integer number (5987536).

Almost surely, 2^23201671 is an apocalyptic number.

23201671 is a deficient number, since it is larger than the sum of its proper divisors (748473).

23201671 is an equidigital number, since it uses as much as digits as its factorization.

23201671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748472.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 23201671 is about 4816.8112896397. The cubic root of 23201671 is about 285.2154767299.

It can be divided in two parts, 2320 and 1671, that multiplied together give a triangular number (3876720 = T₂₇₈₄).

The spelling of 23201671 in words is "twenty-three million, two hundred one thousand, six hundred seventy-one".