396129 has 8 divisors (see below), whose sum is σ = 551232. Its totient is φ = 252560.

The previous prime is 396119. The next prime is 396157. The reversal of 396129 is 921693.

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 396129 - 2⁷ = 396001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 396096 and 396105.

It is not an unprimeable number, because it can be changed into a prime (396119) 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, 2802 + ... + 2939.

It is an arithmetic number, because the mean of its divisors is an integer number (68904).

2³⁹⁶¹²⁹ is an apocalyptic number.

It is an amenable number.

396129 is a deficient number, since it is larger than the sum of its proper divisors (155103).

396129 is a wasteful number, since it uses less digits than its factorization.

396129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5767.

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

The square root of 396129 is about 629.3877977845. The cubic root of 396129 is about 73.4421776710.

It can be divided in two parts, 39612 and 9, that added together give a triangular number (39621 = T₂₈₁).

The spelling of 396129 in words is "three hundred ninety-six thousand, one hundred twenty-nine".