6746739 has 16 divisors (see below), whose sum is σ = 9580032. Its totient is φ = 4208768.

The previous prime is 6746737. The next prime is 6746771. The reversal of 6746739 is 9376476.

It is a cyclic number.

It is not a de Polignac number, because 6746739 - 2¹ = 6746737 is a prime.

6746739 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6746739.

It is not an unprimeable number, because it can be changed into a prime (6746737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13162 + ... + 13664.

It is an arithmetic number, because the mean of its divisors is an integer number (598752).

Almost surely, 2^6746739 is an apocalyptic number.

6746739 is a deficient number, since it is larger than the sum of its proper divisors (2833293).

6746739 is a wasteful number, since it uses less digits than its factorization.

6746739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786.

The product of its digits is 190512, while the sum is 42.

The square root of 6746739 is about 2597.4485557947. The cubic root of 6746739 is about 188.9577184890.

The spelling of 6746739 in words is "six million, seven hundred forty-six thousand, seven hundred thirty-nine".