397386 has 40 divisors (see below), whose sum is σ = 975744. Its totient is φ = 119880.

The previous prime is 397379. The next prime is 397427. The reversal of 397386 is 683793.

397386 is a nontrivial binomial coefficient, being equal to C(892, 2).

It is an Ulam number.

It is a nialpdrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 397386.

It is an unprimeable number.

397386 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1671 + ... + 1893.

2³⁹⁷³⁸⁶ is an apocalyptic number.

397386 is the 891-st triangular number and also the 446-th hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487872).

397386 is an abundant number, since it is smaller than the sum of its proper divisors (578358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

397386 is a wasteful number, since it uses less digits than its factorization.

397386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 239 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 397386 is about 630.3855962821. The cubic root of 397386 is about 73.5197781010.

The spelling of 397386 in words is "three hundred ninety-seven thousand, three hundred eighty-six".