23064539 has 4 divisors (see below), whose sum is σ = 23149920. Its totient is φ = 22979160.

The previous prime is 23064523. The next prime is 23064553. The reversal of 23064539 is 93546032.

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

It is a cyclic number.

It is not a de Polignac number, because 23064539 - 2⁴ = 23064523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23064739) 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, 42284 + ... + 42825.

It is an arithmetic number, because the mean of its divisors is an integer number (5787480).

Almost surely, 2^23064539 is an apocalyptic number.

23064539 is a deficient number, since it is larger than the sum of its proper divisors (85381).

23064539 is an equidigital number, since it uses as much as digits as its factorization.

23064539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85380.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 23064539 is about 4802.5554655829. Note that the first 3 decimals coincide. The cubic root of 23064539 is about 284.6524500491.

The spelling of 23064539 in words is "twenty-three million, sixty-four thousand, five hundred thirty-nine".