23216471 has 4 divisors (see below), whose sum is σ = 23298792. Its totient is φ = 23134152.

The previous prime is 23216467. The next prime is 23216477. The reversal of 23216471 is 17461232.

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 23216471 - 2² = 23216467 is a prime.

It is a super-3 number, since 3×23216471³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23216471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23216477) 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, 40736 + ... + 41301.

It is an arithmetic number, because the mean of its divisors is an integer number (5824698).

Almost surely, 2^23216471 is an apocalyptic number.

23216471 is a deficient number, since it is larger than the sum of its proper divisors (82321).

23216471 is an equidigital number, since it uses as much as digits as its factorization.

23216471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82320.

The product of its digits is 2016, while the sum is 26.

The square root of 23216471 is about 4818.3473307764. The cubic root of 23216471 is about 285.2761087397.

The spelling of 23216471 in words is "twenty-three million, two hundred sixteen thousand, four hundred seventy-one".