6547397 has 4 divisors (see below), whose sum is σ = 6932556. Its totient is φ = 6162240.

The previous prime is 6547391. The next prime is 6547399. The reversal of 6547397 is 7937456.

6547397 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 3568321 + 2979076 = 1889^2 + 1726^2 .

It is a cyclic number.

It is not a de Polignac number, because 6547397 - 2⁸ = 6547141 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 (6547391) 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, 192554 + ... + 192587.

It is an arithmetic number, because the mean of its divisors is an integer number (1733139).

Almost surely, 2^6547397 is an apocalyptic number.

It is an amenable number.

6547397 is a deficient number, since it is larger than the sum of its proper divisors (385159).

6547397 is a wasteful number, since it uses less digits than its factorization.

6547397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385158.

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

The square root of 6547397 is about 2558.7881897492. The cubic root of 6547397 is about 187.0780746743.

The spelling of 6547397 in words is "six million, five hundred forty-seven thousand, three hundred ninety-seven".