672397 has 6 divisors (see below), whose sum is σ = 739214. Its totient is φ = 611160.

The previous prime is 672379. The next prime is 672439. The reversal of 672397 is 793276.

It can be written as a sum of positive squares in only one way, i.e., 662596 + 9801 = 814^2 + 99^2 .

It is not a de Polignac number, because 672397 - 2¹¹ = 670349 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 (672317) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2658 + ... + 2899.

2⁶⁷²³⁹⁷ is an apocalyptic number.

It is an amenable number.

672397 is a deficient number, since it is larger than the sum of its proper divisors (66817).

672397 is a wasteful number, since it uses less digits than its factorization.

672397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5579 (or 5568 counting only the distinct ones).

The product of its digits is 15876, while the sum is 34.

The square root of 672397 is about 819.9981707297. The cubic root of 672397 is about 87.6076281036.

The spelling of 672397 in words is "six hundred seventy-two thousand, three hundred ninety-seven".