6743745 has 12 divisors (see below), whose sum is σ = 11689236. Its totient is φ = 3596640.

The previous prime is 6743729. The next prime is 6743753. The reversal of 6743745 is 5473476.

It can be written as a sum of positive squares in 2 ways, for example, as 2039184 + 4704561 = 1428^2 + 2169^2 .

It is not a de Polignac number, because 6743745 - 2⁴ = 6743729 is a prime.

6743745 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 74886 + ... + 74975.

It is an arithmetic number, because the mean of its divisors is an integer number (974103).

Almost surely, 2^6743745 is an apocalyptic number.

It is an amenable number.

6743745 is a deficient number, since it is larger than the sum of its proper divisors (4945491).

6743745 is a wasteful number, since it uses less digits than its factorization.

6743745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149872 (or 149869 counting only the distinct ones).

The product of its digits is 70560, while the sum is 36.

The square root of 6743745 is about 2596.8721570382. The cubic root of 6743745 is about 188.9297631012.

The spelling of 6743745 in words is "six million, seven hundred forty-three thousand, seven hundred forty-five".