396869 has 8 divisors (see below), whose sum is σ = 438240. Its totient is φ = 356400.

The previous prime is 396833. The next prime is 396871. The reversal of 396869 is 968693.

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

It is not a de Polignac number, because 396869 - 2¹⁶ = 331333 is a prime.

It is a super-2 number, since 2×396869² = 315010006322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1034 + ... + 1364.

It is an arithmetic number, because the mean of its divisors is an integer number (54780).

2³⁹⁶⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

396869 is a deficient number, since it is larger than the sum of its proper divisors (41371).

396869 is a wasteful number, since it uses less digits than its factorization.

396869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451.

The product of its digits is 69984, while the sum is 41.

The square root of 396869 is about 629.9753963450. The cubic root of 396869 is about 73.4878811370.

The spelling of 396869 in words is "three hundred ninety-six thousand, eight hundred sixty-nine".