397737 has 8 divisors (see below), whose sum is σ = 589280. Its totient is φ = 265140.

The previous prime is 397729. The next prime is 397751. The reversal of 397737 is 737793.

It is not a de Polignac number, because 397737 - 2³ = 397729 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (397757) 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, 7339 + ... + 7392.

It is an arithmetic number, because the mean of its divisors is an integer number (73660).

2³⁹⁷⁷³⁷ is an apocalyptic number.

It is an amenable number.

397737 is a deficient number, since it is larger than the sum of its proper divisors (191543).

397737 is a wasteful number, since it uses less digits than its factorization.

397737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14740 (or 14734 counting only the distinct ones).

The product of its digits is 27783, while the sum is 36.

The square root of 397737 is about 630.6639358644. The cubic root of 397737 is about 73.5414177227.

It can be divided in two parts, 39 and 7737, that added together give a 5-th power (7776 = 6⁵).

The spelling of 397737 in words is "three hundred ninety-seven thousand, seven hundred thirty-seven".