6724345 has 4 divisors (see below), whose sum is σ = 8069220. Its totient is φ = 5379472.

The previous prime is 6724307. The next prime is 6724351. The reversal of 6724345 is 5434276.

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 4129024 + 2595321 = 2032^2 + 1611^2 .

It is a cyclic number.

It is not a de Polignac number, because 6724345 - 2¹³ = 6716153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 672430 + ... + 672439.

It is an arithmetic number, because the mean of its divisors is an integer number (2017305).

Almost surely, 2^6724345 is an apocalyptic number.

It is an amenable number.

6724345 is a deficient number, since it is larger than the sum of its proper divisors (1344875).

6724345 is a wasteful number, since it uses less digits than its factorization.

6724345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344874.

The product of its digits is 20160, while the sum is 31.

The square root of 6724345 is about 2593.1342040087. The cubic root of 6724345 is about 188.7484218396.

The spelling of 6724345 in words is "six million, seven hundred twenty-four thousand, three hundred forty-five".