3989374009 has 4 divisors (see below), whose sum is σ = 4126938660. Its totient is φ = 3851809360.

The previous prime is 3989373991. The next prime is 3989374019. The reversal of 3989374009 is 9004739893.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1049565609 + 2939808400 = 32397^2 + 54220^2 .

It is a cyclic number.

It is not a de Polignac number, because 3989374009 - 2⁷ = 3989373881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3989374019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68782282 + ... + 68782339.

It is an arithmetic number, because the mean of its divisors is an integer number (1031734665).

Almost surely, 2^3989374009 is an apocalyptic number.

It is an amenable number.

3989374009 is a deficient number, since it is larger than the sum of its proper divisors (137564651).

3989374009 is a wasteful number, since it uses less digits than its factorization.

3989374009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137564650.

The product of its (nonzero) digits is 1469664, while the sum is 52.

The square root of 3989374009 is about 63161.4915039219. The cubic root of 3989374009 is about 1585.9941629917.

The spelling of 3989374009 in words is "three billion, nine hundred eighty-nine million, three hundred seventy-four thousand, nine".