390163 has 4 divisors (see below), whose sum is σ = 394128. Its totient is φ = 386200.

The previous prime is 390161. The next prime is 390191. The reversal of 390163 is 361093.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 390163 - 2¹ = 390161 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1831 + ... + 2032.

It is an arithmetic number, because the mean of its divisors is an integer number (98532).

2³⁹⁰¹⁶³ is an apocalyptic number.

390163 is a deficient number, since it is larger than the sum of its proper divisors (3965).

390163 is a wasteful number, since it uses less digits than its factorization.

390163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3964.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 390163 is about 624.6302906520. The cubic root of 390163 is about 73.0716129674.

The spelling of 390163 in words is "three hundred ninety thousand, one hundred sixty-three".