396671 has 4 divisors (see below), whose sum is σ = 432744. Its totient is φ = 360600.

The previous prime is 396667. The next prime is 396679. The reversal of 396671 is 176693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176693 = 11 ⋅16063.

It is a cyclic number.

It is not a de Polignac number, because 396671 - 2² = 396667 is a prime.

It is a Duffinian number.

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 396671.

It is not an unprimeable number, because it can be changed into a prime (396679) 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, 18020 + ... + 18041.

It is an arithmetic number, because the mean of its divisors is an integer number (108186).

2³⁹⁶⁶⁷¹ is an apocalyptic number.

396671 is a deficient number, since it is larger than the sum of its proper divisors (36073).

396671 is a wasteful number, since it uses less digits than its factorization.

396671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36072.

The product of its digits is 6804, while the sum is 32.

The square root of 396671 is about 629.8182277451. The cubic root of 396671 is about 73.4756579425.

The spelling of 396671 in words is "three hundred ninety-six thousand, six hundred seventy-one".