23017613 has 4 divisors (see below), whose sum is σ = 23164380. Its totient is φ = 22870848.

The previous prime is 23017567. The next prime is 23017637. The reversal of 23017613 is 31671032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15194404 + 7823209 = 3898^2 + 2797^2 .

It is a cyclic number.

It is not a de Polignac number, because 23017613 - 2¹⁶ = 22952077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23017693) 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, 73148 + ... + 73461.

It is an arithmetic number, because the mean of its divisors is an integer number (5791095).

Almost surely, 2^23017613 is an apocalyptic number.

It is an amenable number.

23017613 is a deficient number, since it is larger than the sum of its proper divisors (146767).

23017613 is a wasteful number, since it uses less digits than its factorization.

23017613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146766.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 23017613 is about 4797.6674540864. The cubic root of 23017613 is about 284.4592722588.

Adding to 23017613 its reverse (31671032), we get a palindrome (54688645).

The spelling of 23017613 in words is "twenty-three million, seventeen thousand, six hundred thirteen".