23653728 has 96 divisors (see below), whose sum is σ = 78865920. Its totient is φ = 6756480.

The previous prime is 23653699. The next prime is 23653757. The reversal of 23653728 is 82735632.

It is an interprime number because it is at equal distance from previous prime (23653699) and next prime (23653757).

It is a tau number, because it is divible by the number of its divisors (96).

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 = 23653692 and 23653701.

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, 4093 + ... + 8003.

It is an arithmetic number, because the mean of its divisors is an integer number (821520).

Almost surely, 2^23653728 is an apocalyptic number.

23653728 is a gapful number since it is divisible by the number (28) 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 23653728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39432960).

23653728 is an abundant number, since it is smaller than the sum of its proper divisors (55212192).

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

23653728 is a wasteful number, since it uses less digits than its factorization.

23653728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3937 (or 3923 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 23653728 is about 4863.5098437240. The cubic root of 23653728 is about 287.0559365208.

The spelling of 23653728 in words is "twenty-three million, six hundred fifty-three thousand, seven hundred twenty-eight".