6749215 has 24 divisors (see below), whose sum is σ = 9180144. Its totient is φ = 4723200.

The previous prime is 6749213. The next prime is 6749261. The reversal of 6749215 is 5129476.

6749215 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6749215 - 2¹ = 6749213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6749213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 92419 + ... + 92491.

It is an arithmetic number, because the mean of its divisors is an integer number (382506).

Almost surely, 2^6749215 is an apocalyptic number.

6749215 is a deficient number, since it is larger than the sum of its proper divisors (2430929).

6749215 is a wasteful number, since it uses less digits than its factorization.

6749215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 130 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

The square root of 6749215 is about 2597.9251336403. The cubic root of 6749215 is about 188.9808309926.

It can be divided in two parts, 674 and 9215, that added together give a palindrome (9889).

The spelling of 6749215 in words is "six million, seven hundred forty-nine thousand, two hundred fifteen".