6723172 has 6 divisors (see below), whose sum is σ = 11765558. Its totient is φ = 3361584.

The previous prime is 6723163. The next prime is 6723181. The reversal of 6723172 is 2713276.

It is an interprime number because it is at equal distance from previous prime (6723163) and next prime (6723181).

It can be written as a sum of positive squares in only one way, i.e., 3709476 + 3013696 = 1926^2 + 1736^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6723172.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 840393 + ... + 840400.

Almost surely, 2^6723172 is an apocalyptic number.

It is an amenable number.

6723172 is a deficient number, since it is larger than the sum of its proper divisors (5042386).

6723172 is a wasteful number, since it uses less digits than its factorization.

6723172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680797 (or 1680795 counting only the distinct ones).

The product of its digits is 3528, while the sum is 28.

The square root of 6723172 is about 2592.9080199652. The cubic root of 6723172 is about 188.7374460606.

It can be divided in two parts, 672 and 3172, that added together give a square (3844 = 62²).

The spelling of 6723172 in words is "six million, seven hundred twenty-three thousand, one hundred seventy-two".