3666607839 has 12 divisors (see below), whose sum is σ = 5303775672. Its totient is φ = 2440914000.

The previous prime is 3666607831. The next prime is 3666607853. The reversal of 3666607839 is 9387066663.

It is a happy number.

It is not a de Polignac number, because 3666607839 - 2³ = 3666607831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3666607831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284277 + ... + 296894.

It is an arithmetic number, because the mean of its divisors is an integer number (441981306).

Almost surely, 2^3666607839 is an apocalyptic number.

3666607839 is a deficient number, since it is larger than the sum of its proper divisors (1637167833).

3666607839 is a wasteful number, since it uses less digits than its factorization.

3666607839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581878 (or 581875 counting only the distinct ones).

The product of its (nonzero) digits is 5878656, while the sum is 54.

The square root of 3666607839 is about 60552.5213265311. The cubic root of 3666607839 is about 1542.0134229983.

The spelling of 3666607839 in words is "three billion, six hundred sixty-six million, six hundred seven thousand, eight hundred thirty-nine".