6731397 has 8 divisors (see below), whose sum is σ = 9972480. Its totient is φ = 4487580.

The previous prime is 6731363. The next prime is 6731401. The reversal of 6731397 is 7931376.

It is not a de Polignac number, because 6731397 - 2¹⁶ = 6665861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6731327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124629 + ... + 124682.

It is an arithmetic number, because the mean of its divisors is an integer number (1246560).

Almost surely, 2^6731397 is an apocalyptic number.

It is an amenable number.

6731397 is a deficient number, since it is larger than the sum of its proper divisors (3241083).

6731397 is a wasteful number, since it uses less digits than its factorization.

6731397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249320 (or 249314 counting only the distinct ones).

The product of its digits is 23814, while the sum is 36.

The square root of 6731397 is about 2594.4935922064. The cubic root of 6731397 is about 188.8143806226.

The spelling of 6731397 in words is "six million, seven hundred thirty-one thousand, three hundred ninety-seven".