23216461 has 8 divisors (see below), whose sum is σ = 24523200. Its totient is φ = 21918240.

The previous prime is 23216447. The next prime is 23216467. The reversal of 23216461 is 16461232.

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

It is a cyclic number.

It is not a de Polignac number, because 23216461 - 2⁵ = 23216429 is a prime.

It is a super-2 number, since 2×23216461² = 1078008122729042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23216467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3945 + ... + 7873.

It is an arithmetic number, because the mean of its divisors is an integer number (3065400).

Almost surely, 2^23216461 is an apocalyptic number.

It is an amenable number.

23216461 is a deficient number, since it is larger than the sum of its proper divisors (1306739).

23216461 is a wasteful number, since it uses less digits than its factorization.

23216461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4259.

The product of its digits is 1728, while the sum is 25.

The square root of 23216461 is about 4818.3462930761. The cubic root of 23216461 is about 285.2760677808.

Adding to 23216461 its reverse (16461232), we get a palindrome (39677693).

The spelling of 23216461 in words is "twenty-three million, two hundred sixteen thousand, four hundred sixty-one".