6745739 has 32 divisors (see below), whose sum is σ = 9483264. Its totient is φ = 4625280.

The previous prime is 6745709. The next prime is 6745751. The reversal of 6745739 is 9375476.

It is not a de Polignac number, because 6745739 - 2⁸ = 6745483 is a prime.

It is a super-2 number, since 2×6745739² = 91009989312242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6745696 and 6745705.

It is not an unprimeable number, because it can be changed into a prime (6745709) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22877 + ... + 23169.

It is an arithmetic number, because the mean of its divisors is an integer number (296352).

Almost surely, 2^6745739 is an apocalyptic number.

6745739 is a deficient number, since it is larger than the sum of its proper divisors (2737525).

6745739 is a wasteful number, since it uses less digits than its factorization.

6745739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347.

The product of its digits is 158760, while the sum is 41.

The square root of 6745739 is about 2597.2560520673. The cubic root of 6745739 is about 188.9483822721.

The spelling of 6745739 in words is "six million, seven hundred forty-five thousand, seven hundred thirty-nine".