396291 has 16 divisors (see below), whose sum is σ = 612864. Its totient is φ = 223104.

The previous prime is 396269. The next prime is 396293. The reversal of 396291 is 192693.

It is not a de Polignac number, because 396291 - 2⁵ = 396259 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (396293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2290 + ... + 2456.

It is an arithmetic number, because the mean of its divisors is an integer number (38304).

2³⁹⁶²⁹¹ is an apocalyptic number.

396291 is a deficient number, since it is larger than the sum of its proper divisors (216573).

396291 is a wasteful number, since it uses less digits than its factorization.

396291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290.

The product of its digits is 2916, while the sum is 30.

The square root of 396291 is about 629.5164811186. The cubic root of 396291 is about 73.4521878876.

The spelling of 396291 in words is "three hundred ninety-six thousand, two hundred ninety-one".