396929 has 8 divisors (see below), whose sum is σ = 450240. Its totient is φ = 346896.

The previous prime is 396919. The next prime is 396931. The reversal of 396929 is 929693.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396929 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 396892 and 396901.

It is not an unprimeable number, because it can be changed into a prime (396919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557 + ... + 1050.

It is an arithmetic number, because the mean of its divisors is an integer number (56280).

2³⁹⁶⁹²⁹ is an apocalyptic number.

It is an amenable number.

396929 is a deficient number, since it is larger than the sum of its proper divisors (53311).

396929 is a wasteful number, since it uses less digits than its factorization.

396929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1639.

The product of its digits is 26244, while the sum is 38.

The square root of 396929 is about 630.0230154526. The cubic root of 396929 is about 73.4915843327.

The spelling of 396929 in words is "three hundred ninety-six thousand, nine hundred twenty-nine".