6742147 has 4 divisors (see below), whose sum is σ = 6852736. Its totient is φ = 6631560.

The previous prime is 6742117. The next prime is 6742171. The reversal of 6742147 is 7412476.

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

It is a cyclic number.

It is not a de Polignac number, because 6742147 - 2¹¹ = 6740099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6742117) 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, 55203 + ... + 55324.

It is an arithmetic number, because the mean of its divisors is an integer number (1713184).

Almost surely, 2^6742147 is an apocalyptic number.

6742147 is a deficient number, since it is larger than the sum of its proper divisors (110589).

6742147 is a wasteful number, since it uses less digits than its factorization.

6742147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110588.

The product of its digits is 9408, while the sum is 31.

The square root of 6742147 is about 2596.5644609753. The cubic root of 6742147 is about 188.9148389697.

It can be divided in two parts, 6742 and 147, that added together give a square (6889 = 83²).

The spelling of 6742147 in words is "six million, seven hundred forty-two thousand, one hundred forty-seven".