390929 has 8 divisors (see below), whose sum is σ = 487488. Its totient is φ = 304560.

The previous prime is 390893. The next prime is 390953. The reversal of 390929 is 929093.

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 390929 - 2⁸ = 390673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 390895 and 390904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2462 + ... + 2615.

It is an arithmetic number, because the mean of its divisors is an integer number (60936).

2³⁹⁰⁹²⁹ is an apocalyptic number.

It is an amenable number.

390929 is a deficient number, since it is larger than the sum of its proper divisors (96559).

390929 is a wasteful number, since it uses less digits than its factorization.

390929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5095.

The product of its (nonzero) digits is 4374, while the sum is 32.

The square root of 390929 is about 625.2431527014. The cubic root of 390929 is about 73.1194017678.

The spelling of 390929 in words is "three hundred ninety thousand, nine hundred twenty-nine".