23438533 has 4 divisors (see below), whose sum is σ = 24672160. Its totient is φ = 22204908.

The previous prime is 23438531. The next prime is 23438537. The reversal of 23438533 is 33583432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23438533 - 2¹ = 23438531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23438495 and 23438504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23438531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616785 + ... + 616822.

It is an arithmetic number, because the mean of its divisors is an integer number (6168040).

Almost surely, 2^23438533 is an apocalyptic number.

It is an amenable number.

23438533 is a deficient number, since it is larger than the sum of its proper divisors (1233627).

23438533 is a wasteful number, since it uses less digits than its factorization.

23438533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1233626.

The product of its digits is 25920, while the sum is 31.

The square root of 23438533 is about 4841.3358693650. The cubic root of 23438533 is about 286.1827649848.

The spelling of 23438533 in words is "twenty-three million, four hundred thirty-eight thousand, five hundred thirty-three".