397941 has 4 divisors (see below), whose sum is σ = 530592. Its totient is φ = 265292.

The previous prime is 397939. The next prime is 397951. The reversal of 397941 is 149793.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 397941 - 2¹ = 397939 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66321 + ... + 66326.

It is an arithmetic number, because the mean of its divisors is an integer number (132648).

2³⁹⁷⁹⁴¹ is an apocalyptic number.

It is an amenable number.

397941 is a deficient number, since it is larger than the sum of its proper divisors (132651).

397941 is a wasteful number, since it uses less digits than its factorization.

397941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132650.

The product of its digits is 6804, while the sum is 33.

The square root of 397941 is about 630.8256494468. The cubic root of 397941 is about 73.5539887474.

The spelling of 397941 in words is "three hundred ninety-seven thousand, nine hundred forty-one".