6723972 has 30 divisors (see below), whose sum is σ = 17578638. Its totient is φ = 2241216.

The previous prime is 6723971. The next prime is 6723979. The reversal of 6723972 is 2793276.

It can be written as a sum of positive squares in only one way, i.e., 5225796 + 1498176 = 2286^2 + 1224^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a d-powerful number, because it can be written as 6⁶ + 7⁷ + 2¹¹ + 3⁹ + 9⁵ + 7⁸ + 2¹³ .

It is not an unprimeable number, because it can be changed into a prime (6723971) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 10053 + ... + 10700.

Almost surely, 2^6723972 is an apocalyptic number.

It is an amenable number.

6723972 is an abundant number, since it is smaller than the sum of its proper divisors (10854666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6723972 is a wasteful number, since it uses less digits than its factorization.

6723972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20769 (or 20758 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 6723972 is about 2593.0622823218. The cubic root of 6723972 is about 188.7449318113.

The spelling of 6723972 in words is "six million, seven hundred twenty-three thousand, nine hundred seventy-two".