6520323 has 8 divisors (see below), whose sum is σ = 8974336. Its totient is φ = 4206600.

The previous prime is 6520321. The next prime is 6520343. The reversal of 6520323 is 3230256.

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

It is not a de Polignac number, because 6520323 - 2¹ = 6520321 is a prime.

It is a super-2 number, since 2×6520323² = 85029224048658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6520323.

It is not an unprimeable number, because it can be changed into a prime (6520321) 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, 34963 + ... + 35148.

It is an arithmetic number, because the mean of its divisors is an integer number (1121792).

Almost surely, 2^6520323 is an apocalyptic number.

6520323 is a deficient number, since it is larger than the sum of its proper divisors (2454013).

6520323 is a wasteful number, since it uses less digits than its factorization.

6520323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70145.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 6520323 is about 2553.4923144588. The cubic root of 6520323 is about 186.8198575946.

Adding to 6520323 its reverse (3230256), we get a palindrome (9750579).

The spelling of 6520323 in words is "six million, five hundred twenty thousand, three hundred twenty-three".