396969 has 8 divisors (see below), whose sum is σ = 534432. Its totient is φ = 262080.

The previous prime is 396953. The next prime is 396971. The reversal of 396969 is 969693.

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

It is not a de Polignac number, because 396969 - 2⁴ = 396953 is a prime.

It is a super-2 number, since 2×396969² = 315168773922, which contains 22 as substring.

It is a Curzon number.

396969 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 396969.

It is not an unprimeable number, because it can be changed into a prime (396919) 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, 247 + ... + 924.

It is an arithmetic number, because the mean of its divisors is an integer number (66804).

2³⁹⁶⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

396969 is a deficient number, since it is larger than the sum of its proper divisors (137463).

396969 is a wasteful number, since it uses less digits than its factorization.

396969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287.

The product of its digits is 78732, while the sum is 42.

The square root of 396969 is about 630.0547595249. The cubic root of 396969 is about 73.4940529225.

The spelling of 396969 in words is "three hundred ninety-six thousand, nine hundred sixty-nine".