23011656 has 16 divisors (see below), whose sum is σ = 57529200. Its totient is φ = 7670544.

The previous prime is 23011649. The next prime is 23011657. The reversal of 23011656 is 65611032.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 958819 = 23011656 / (2 + 3 + 0 + 1 + 1 + 6 + 5 + 6).

It is not an unprimeable number, because it can be changed into a prime (23011657) 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, 479386 + ... + 479433.

It is an arithmetic number, because the mean of its divisors is an integer number (3595575).

Almost surely, 2^23011656 is an apocalyptic number.

It is an amenable number.

23011656 is an abundant number, since it is smaller than the sum of its proper divisors (34517544).

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

23011656 is a wasteful number, since it uses less digits than its factorization.

23011656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 958828 (or 958824 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 23011656 is about 4797.0465913935. The cubic root of 23011656 is about 284.4347306163.

Adding to 23011656 its reverse (65611032), we get a palindrome (88622688).

The spelling of 23011656 in words is "twenty-three million, eleven thousand, six hundred fifty-six".