23216812 has 6 divisors (see below), whose sum is σ = 40629428. Its totient is φ = 11608404.

The previous prime is 23216789. The next prime is 23216813. The reversal of 23216812 is 21861232.

It is not an unprimeable number, because it can be changed into a prime (23216813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2902098 + ... + 2902105.

Almost surely, 2^23216812 is an apocalyptic number.

It is an amenable number.

23216812 is a deficient number, since it is larger than the sum of its proper divisors (17412616).

23216812 is a wasteful number, since it uses less digits than its factorization.

23216812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5804207 (or 5804205 counting only the distinct ones).

The product of its digits is 1152, while the sum is 25.

The square root of 23216812 is about 4818.3827162234. The cubic root of 23216812 is about 285.2775054302.

The spelling of 23216812 in words is "twenty-three million, two hundred sixteen thousand, eight hundred twelve".