397111 has 8 divisors (see below), whose sum is σ = 466704. Its totient is φ = 333120.

The previous prime is 397099. The next prime is 397127. The reversal of 397111 is 111793.

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 397111 - 2⁷ = 396983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (397151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1246 + ... + 1531.

It is an arithmetic number, because the mean of its divisors is an integer number (58338).

2³⁹⁷¹¹¹ is an apocalyptic number.

397111 is a deficient number, since it is larger than the sum of its proper divisors (69593).

397111 is a wasteful number, since it uses less digits than its factorization.

397111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2801.

The product of its digits is 189, while the sum is 22.

The square root of 397111 is about 630.1674380671. The cubic root of 397111 is about 73.5028150772.

It can be divided in two parts, 3971 and 11, that multiplied together give a square (43681 = 209²).

The spelling of 397111 in words is "three hundred ninety-seven thousand, one hundred eleven".