6723975 has 12 divisors (see below), whose sum is σ = 11117096. Its totient is φ = 3586080.

The previous prime is 6723971. The next prime is 6723979. The reversal of 6723975 is 5793276.

It is an interprime number because it is at equal distance from previous prime (6723971) and next prime (6723979).

It is not a de Polignac number, because 6723975 - 2² = 6723971 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

6723975 is a lucky number.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 44752 + ... + 44901.

Almost surely, 2^6723975 is an apocalyptic number.

6723975 is a deficient number, since it is larger than the sum of its proper divisors (4393121).

6723975 is a wasteful number, since it uses less digits than its factorization.

6723975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89666 (or 89661 counting only the distinct ones).

The product of its digits is 79380, while the sum is 39.

The square root of 6723975 is about 2593.0628607884. The cubic root of 6723975 is about 188.7449598818.

It can be divided in two parts, 67 and 23975, that added together give a palindrome (24042).

The spelling of 6723975 in words is "six million, seven hundred twenty-three thousand, nine hundred seventy-five".