23161684 has 96 divisors (see below), whose sum is σ = 55883520. Its totient is φ = 8128512.

The previous prime is 23161669. The next prime is 23161693. The reversal of 23161684 is 48616132.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117474 + ... + 117670.

It is an arithmetic number, because the mean of its divisors is an integer number (582120).

Almost surely, 2^23161684 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23161684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27941760).

23161684 is an abundant number, since it is smaller than the sum of its proper divisors (32721836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23161684 is a wasteful number, since it uses less digits than its factorization.

23161684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 255 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 23161684 is about 4812.6587246552. The cubic root of 23161684 is about 285.0515306432.

The spelling of 23161684 in words is "twenty-three million, one hundred sixty-one thousand, six hundred eighty-four".