397105 has 8 divisors (see below), whose sum is σ = 487872. Its totient is φ = 310128.

The previous prime is 397099. The next prime is 397127. The reversal of 397105 is 501793.

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

It is a cyclic number.

It is not a de Polignac number, because 397105 - 2⁵ = 397073 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 397105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 709 + ... + 1138.

It is an arithmetic number, because the mean of its divisors is an integer number (60984).

2³⁹⁷¹⁰⁵ is an apocalyptic number.

It is an amenable number.

397105 is a deficient number, since it is larger than the sum of its proper divisors (90767).

397105 is a wasteful number, since it uses less digits than its factorization.

397105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1895.

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 397105 is about 630.1626774096. The cubic root of 397105 is about 73.5024448876.

Adding to 397105 its reverse (501793), we get a palindrome (898898).

The spelling of 397105 in words is "three hundred ninety-seven thousand, one hundred five".