8387964 has 36 divisors (see below), whose sum is σ = 22835176. Its totient is φ = 2580768.

The previous prime is 8387959. The next prime is 8387993. The reversal of 8387964 is 4697838.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8494 + ... + 9429.

Almost surely, 2^8387964 is an apocalyptic number.

It is an amenable number.

8387964 is an abundant number, since it is smaller than the sum of its proper divisors (14447212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8387964 is a wasteful number, since it uses less digits than its factorization.

8387964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17946 (or 17941 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 8387964 is about 2896.1981976377. The cubic root of 8387964 is about 203.1821349020.

The spelling of 8387964 in words is "eight million, three hundred eighty-seven thousand, nine hundred sixty-four".