397365 has 16 divisors (see below), whose sum is σ = 648000. Its totient is φ = 207872.

The previous prime is 397361. The next prime is 397373. The reversal of 397365 is 563793.

It is a cyclic number.

It is not a de Polignac number, because 397365 - 2² = 397361 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 397365.

It is not an unprimeable number, because it can be changed into a prime (397361) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 661 + ... + 1109.

It is an arithmetic number, because the mean of its divisors is an integer number (40500).

2³⁹⁷³⁶⁵ is an apocalyptic number.

It is an amenable number.

397365 is a deficient number, since it is larger than the sum of its proper divisors (250635).

397365 is a wasteful number, since it uses less digits than its factorization.

397365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516.

The product of its digits is 17010, while the sum is 33.

The square root of 397365 is about 630.3689395901. The cubic root of 397365 is about 73.5184830189.

The spelling of 397365 in words is "three hundred ninety-seven thousand, three hundred sixty-five".