6745408 has 14 divisors (see below), whose sum is σ = 13385546. Its totient is φ = 3372672.

The previous prime is 6745397. The next prime is 6745421. The reversal of 6745408 is 8045476.

It can be written as a sum of positive squares in only one way, i.e., 4981824 + 1763584 = 2232^2 + 1328^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52635 + ... + 52762.

Almost surely, 2^6745408 is an apocalyptic number.

It is an amenable number.

6745408 is a deficient number, since it is larger than the sum of its proper divisors (6640138).

6745408 is a wasteful number, since it uses less digits than its factorization.

6745408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105409 (or 105399 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 6745408 is about 2597.1923301904. The cubic root of 6745408 is about 188.9452917811.

The spelling of 6745408 in words is "six million, seven hundred forty-five thousand, four hundred eight".