389961 has 32 divisors (see below), whose sum is σ = 685440. Its totient is φ = 216000.

The previous prime is 389957. The next prime is 389971. The reversal of 389961 is 169983.

It is not a de Polignac number, because 389961 - 2² = 389957 is a prime.

It is not an unprimeable number, because it can be changed into a prime (389911) 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 31 ways as a sum of consecutive naturals, for example, 3811 + ... + 3911.

It is an arithmetic number, because the mean of its divisors is an integer number (21420).

2³⁸⁹⁹⁶¹ is an apocalyptic number.

It is an amenable number.

389961 is a deficient number, since it is larger than the sum of its proper divisors (295479).

389961 is a wasteful number, since it uses less digits than its factorization.

389961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134 (or 128 counting only the distinct ones).

The product of its digits is 11664, while the sum is 36.

The square root of 389961 is about 624.4685740692. The cubic root of 389961 is about 73.0590002783.

It can be divided in two parts, 38 and 9961, that added together give a palindrome (9999).

The spelling of 389961 in words is "three hundred eighty-nine thousand, nine hundred sixty-one".