6730387 has 8 divisors (see below), whose sum is σ = 6874560. Its totient is φ = 6587880.

The previous prime is 6730369. The next prime is 6730391. The reversal of 6730387 is 7830376.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6730387 - 2¹⁵ = 6697619 is a prime.

It is an Ulam number.

It is a Duffinian number.

6730387 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6730327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10564 + ... + 11182.

It is an arithmetic number, because the mean of its divisors is an integer number (859320).

Almost surely, 2^6730387 is an apocalyptic number.

6730387 is a deficient number, since it is larger than the sum of its proper divisors (144173).

6730387 is a wasteful number, since it uses less digits than its factorization.

6730387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 6730387 is about 2594.2989419109. The cubic root of 6730387 is about 188.8049367156.

It can be divided in two parts, 6730 and 387, that added together give a palindrome (7117).

The spelling of 6730387 in words is "six million, seven hundred thirty thousand, three hundred eighty-seven".