389963 has 16 divisors (see below), whose sum is σ = 492480. Its totient is φ = 301056.

The previous prime is 389957. The next prime is 389971. The reversal of 389963 is 369983.

It is a happy number.

It is not a de Polignac number, because 389963 - 2⁴ = 389947 is a prime.

It is a super-2 number, since 2×389963² = 304142282738, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (389903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3395 + ... + 3507.

It is an arithmetic number, because the mean of its divisors is an integer number (30780).

2³⁸⁹⁹⁶³ is an apocalyptic number.

389963 is a deficient number, since it is larger than the sum of its proper divisors (102517).

389963 is a wasteful number, since it uses less digits than its factorization.

389963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166.

The product of its digits is 34992, while the sum is 38.

The square root of 389963 is about 624.4701754287. The cubic root of 389963 is about 73.0591251777.

It can be divided in two parts, 38 and 9963, that added together give a palindrome (10001).

The spelling of 389963 in words is "three hundred eighty-nine thousand, nine hundred sixty-three".