6598397 has 16 divisors (see below), whose sum is σ = 7645680. Its totient is φ = 5640192.

The previous prime is 6598387. The next prime is 6598411. The reversal of 6598397 is 7938956.

It can be written as a sum of positive squares in 8 ways, for example, as 343396 + 6255001 = 586^2 + 2501^2 .

It is not a de Polignac number, because 6598397 - 2¹⁰ = 6597373 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6598357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15929 + ... + 16337.

It is an arithmetic number, because the mean of its divisors is an integer number (477855).

Almost surely, 2^6598397 is an apocalyptic number.

It is an amenable number.

6598397 is a deficient number, since it is larger than the sum of its proper divisors (1047283).

6598397 is a wasteful number, since it uses less digits than its factorization.

6598397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 512.

The product of its digits is 408240, while the sum is 47.

The square root of 6598397 is about 2568.7345133353. The cubic root of 6598397 is about 187.5625580886.

The spelling of 6598397 in words is "six million, five hundred ninety-eight thousand, three hundred ninety-seven".