6397249 has 4 divisors (see below), whose sum is σ = 6414336. Its totient is φ = 6380164.

The previous prime is 6397229. The next prime is 6397273. The reversal of 6397249 is 9427936.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6397249 - 2⁷ = 6397121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6397229) 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, 7969 + ... + 8734.

It is an arithmetic number, because the mean of its divisors is an integer number (1603584).

Almost surely, 2^6397249 is an apocalyptic number.

It is an amenable number.

6397249 is a deficient number, since it is larger than the sum of its proper divisors (17087).

6397249 is a wasteful number, since it uses less digits than its factorization.

6397249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17086.

The product of its digits is 81648, while the sum is 40.

The square root of 6397249 is about 2529.2783555789. The cubic root of 6397249 is about 185.6369474260.

The spelling of 6397249 in words is "six million, three hundred ninety-seven thousand, two hundred forty-nine".