23806728 has 48 divisors (see below), whose sum is σ = 70340400. Its totient is φ = 7213920.

The previous prime is 23806723. The next prime is 23806747. The reversal of 23806728 is 82760832.

It is a happy number.

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 = 23806692 and 23806701.

It is not an unprimeable number, because it can be changed into a prime (23806721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14238 + ... + 15821.

It is an arithmetic number, because the mean of its divisors is an integer number (1465425).

Almost surely, 2^23806728 is an apocalyptic number.

It is an amenable number.

23806728 is an abundant number, since it is smaller than the sum of its proper divisors (46533672).

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

23806728 is a wasteful number, since it uses less digits than its factorization.

23806728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30082 (or 30075 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 23806728 is about 4879.2138711067. The cubic root of 23806728 is about 287.6735305253.

The spelling of 23806728 in words is "twenty-three million, eight hundred six thousand, seven hundred twenty-eight".