8664039 has 6 divisors (see below), whose sum is σ = 12514736. Its totient is φ = 5776020.

The previous prime is 8664037. The next prime is 8664043. The reversal of 8664039 is 9304668.

8664039 is a `hidden beast` number, since 8 + 6 + 640 + 3 + 9 = 666.

8664039 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8664039 - 2¹ = 8664037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8663994 and 8664012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8664037) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 481327 + ... + 481344.

Almost surely, 2^8664039 is an apocalyptic number.

8664039 is a deficient number, since it is larger than the sum of its proper divisors (3850697).

8664039 is a wasteful number, since it uses less digits than its factorization.

8664039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962677 (or 962674 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 8664039 is about 2943.4739679501. The cubic root of 8664039 is about 205.3872434509.

The spelling of 8664039 in words is "eight million, six hundred sixty-four thousand, thirty-nine".