6764638 has 4 divisors (see below), whose sum is σ = 10146960. Its totient is φ = 3382318.

The previous prime is 6764633. The next prime is 6764671. The reversal of 6764638 is 8364676.

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

It is a self number, because there is not a number n which added to its sum of digits gives 6764638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6764633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1691158 + ... + 1691161.

It is an arithmetic number, because the mean of its divisors is an integer number (2536740).

Almost surely, 2^6764638 is an apocalyptic number.

6764638 is a deficient number, since it is larger than the sum of its proper divisors (3382322).

6764638 is a wasteful number, since it uses less digits than its factorization.

6764638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3382321.

The product of its digits is 145152, while the sum is 40.

The square root of 6764638 is about 2600.8917701435. The cubic root of 6764638 is about 189.1246716234.

The spelling of 6764638 in words is "six million, seven hundred sixty-four thousand, six hundred thirty-eight".