6739563 has 4 divisors (see below), whose sum is σ = 8986088. Its totient is φ = 4493040.

The previous prime is 6739559. The next prime is 6739573. The reversal of 6739563 is 3659376.

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

It is not a de Polignac number, because 6739563 - 2² = 6739559 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6739543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1123258 + ... + 1123263.

It is an arithmetic number, because the mean of its divisors is an integer number (2246522).

Almost surely, 2^6739563 is an apocalyptic number.

6739563 is a deficient number, since it is larger than the sum of its proper divisors (2246525).

6739563 is a wasteful number, since it uses less digits than its factorization.

6739563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2246524.

The product of its digits is 102060, while the sum is 39.

The square root of 6739563 is about 2596.0668327299. The cubic root of 6739563 is about 188.8907013411.

The spelling of 6739563 in words is "six million, seven hundred thirty-nine thousand, five hundred sixty-three".