6742205 has 4 divisors (see below), whose sum is σ = 8090652. Its totient is φ = 5393760.

The previous prime is 6742201. The next prime is 6742213. The reversal of 6742205 is 5022476.

6742205 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4239481 + 2502724 = 2059^2 + 1582^2 .

It is not a de Polignac number, because 6742205 - 2² = 6742201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6742201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674216 + ... + 674225.

It is an arithmetic number, because the mean of its divisors is an integer number (2022663).

Almost surely, 2^6742205 is an apocalyptic number.

It is an amenable number.

6742205 is a deficient number, since it is larger than the sum of its proper divisors (1348447).

6742205 is a wasteful number, since it uses less digits than its factorization.

6742205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348446.

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 6742205 is about 2596.5756295552. The cubic root of 6742205 is about 188.9153806878.

The spelling of 6742205 in words is "six million, seven hundred forty-two thousand, two hundred five".