397437 has 8 divisors (see below), whose sum is σ = 534336. Its totient is φ = 262752.

The previous prime is 397433. The next prime is 397459. The reversal of 397437 is 734793.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 397437 - 2² = 397433 is a prime.

It is a d-powerful number, because it can be written as 3³ + 9² + 4⁹ + 7⁵ + 3⁶ + 7⁶ .

397437 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 397398 and 397407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397433) 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, 73 + ... + 894.

It is an arithmetic number, because the mean of its divisors is an integer number (66792).

2³⁹⁷⁴³⁷ is an apocalyptic number.

It is an amenable number.

397437 is a deficient number, since it is larger than the sum of its proper divisors (136899).

397437 is a wasteful number, since it uses less digits than its factorization.

397437 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1107.

The product of its digits is 15876, while the sum is 33.

The square root of 397437 is about 630.4260464162. The cubic root of 397437 is about 73.5229231106.

The spelling of 397437 in words is "three hundred ninety-seven thousand, four hundred thirty-seven".