23697144 has 64 divisors (see below), whose sum is σ = 67968000. Its totient is φ = 7642080.

The previous prime is 23697127. The next prime is 23697151. The reversal of 23697144 is 44179632.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 23697099 and 23697108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4927 + ... + 8465.

It is an arithmetic number, because the mean of its divisors is an integer number (1062000).

Almost surely, 2^23697144 is an apocalyptic number.

23697144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23697144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33984000).

23697144 is an abundant number, since it is smaller than the sum of its proper divisors (44270856).

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

23697144 is a wasteful number, since it uses less digits than its factorization.

23697144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3585 (or 3575 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 23697144 is about 4867.9712406710. The cubic root of 23697144 is about 287.2314578764.

The spelling of 23697144 in words is "twenty-three million, six hundred ninety-seven thousand, one hundred forty-four".