6749287 has 4 divisors (see below), whose sum is σ = 6759160. Its totient is φ = 6739416.

The previous prime is 6749279. The next prime is 6749291. The reversal of 6749287 is 7829476.

6749287 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6749287 - 2³ = 6749279 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6749087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3828 + ... + 5305.

It is an arithmetic number, because the mean of its divisors is an integer number (1689790).

Almost surely, 2^6749287 is an apocalyptic number.

6749287 is a deficient number, since it is larger than the sum of its proper divisors (9873).

6749287 is an equidigital number, since it uses as much as digits as its factorization.

6749287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9872.

The product of its digits is 169344, while the sum is 43.

The square root of 6749287 is about 2597.9389908156. The cubic root of 6749287 is about 188.9815030002.

The spelling of 6749287 in words is "six million, seven hundred forty-nine thousand, two hundred eighty-seven".