4520823 has 8 divisors (see below), whose sum is σ = 6222336. Its totient is φ = 2916600.

The previous prime is 4520807. The next prime is 4520843. The reversal of 4520823 is 3280254.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4520823 - 2⁴ = 4520807 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 4520793 and 4520802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4520843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24213 + ... + 24398.

It is an arithmetic number, because the mean of its divisors is an integer number (777792).

Almost surely, 2^4520823 is an apocalyptic number.

4520823 is a deficient number, since it is larger than the sum of its proper divisors (1701513).

4520823 is a wasteful number, since it uses less digits than its factorization.

4520823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48645.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 4520823 is about 2126.2227070559. Note that the first 3 decimals coincide. The cubic root of 4520823 is about 165.3506226319.

The spelling of 4520823 in words is "four million, five hundred twenty thousand, eight hundred twenty-three".