23728653 has 32 divisors (see below), whose sum is σ = 38460800. Its totient is φ = 14370048.

The previous prime is 23728633. The next prime is 23728657. The reversal of 23728653 is 35682732.

It is not a de Polignac number, because 23728653 - 2⁶ = 23728589 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23728657) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23013 + ... + 24021.

It is an arithmetic number, because the mean of its divisors is an integer number (1201900).

Almost surely, 2^23728653 is an apocalyptic number.

It is an amenable number.

23728653 is a deficient number, since it is larger than the sum of its proper divisors (14732147).

23728653 is a wasteful number, since it uses less digits than its factorization.

23728653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098 (or 1092 counting only the distinct ones).

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

The square root of 23728653 is about 4871.2065240554. The cubic root of 23728653 is about 287.3587076366.

It can be divided in two parts, 2372 and 8653, that added together give a square (11025 = 105²).

The spelling of 23728653 in words is "twenty-three million, seven hundred twenty-eight thousand, six hundred fifty-three".