390963 has 10 divisors (see below), whose sum is σ = 550244. Its totient is φ = 246924.

The previous prime is 390961. The next prime is 390967. The reversal of 390963 is 369093.

It is not a de Polignac number, because 390963 - 2¹ = 390961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 390963.

It is not an unprimeable number, because it can be changed into a prime (390961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 20568 + ... + 20586.

2³⁹⁰⁹⁶³ is an apocalyptic number.

390963 is a deficient number, since it is larger than the sum of its proper divisors (159281).

390963 is an frugal number, since it uses more digits than its factorization.

390963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79 (or 22 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 390963 is about 625.2703415324. The cubic root of 390963 is about 73.1215214943.

The spelling of 390963 in words is "three hundred ninety thousand, nine hundred sixty-three".