397835 has 8 divisors (see below), whose sum is σ = 480816. Its totient is φ = 316000.

The previous prime is 397829. The next prime is 397849. The reversal of 397835 is 538793.

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

It is not a de Polignac number, because 397835 - 2¹² = 393739 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 397795 and 397804.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1097 + ... + 1413.

It is an arithmetic number, because the mean of its divisors is an integer number (60102).

2³⁹⁷⁸³⁵ is an apocalyptic number.

397835 is a deficient number, since it is larger than the sum of its proper divisors (82981).

397835 is a wasteful number, since it uses less digits than its factorization.

397835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573.

The product of its digits is 22680, while the sum is 35.

The square root of 397835 is about 630.7416269757. The cubic root of 397835 is about 73.5474572807.

The spelling of 397835 in words is "three hundred ninety-seven thousand, eight hundred thirty-five".