3990319689 has 8 divisors (see below), whose sum is σ = 5320782720. Its totient is φ = 2660034896.

The previous prime is 3990319687. The next prime is 3990319691. The reversal of 3990319689 is 9869130993.

It is an interprime number because it is at equal distance from previous prime (3990319687) and next prime (3990319691).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3990319689 - 2¹ = 3990319687 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3990319687) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 21799 + ... + 91955.

It is an arithmetic number, because the mean of its divisors is an integer number (665097840).

Almost surely, 2^3990319689 is an apocalyptic number.

It is an amenable number.

3990319689 is a deficient number, since it is larger than the sum of its proper divisors (1330463031).

3990319689 is a wasteful number, since it uses less digits than its factorization.

3990319689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89119.

The product of its (nonzero) digits is 2834352, while the sum is 57.

The square root of 3990319689 is about 63168.9772673264. The cubic root of 3990319689 is about 1586.1194729158.

The spelling of 3990319689 in words is "three billion, nine hundred ninety million, three hundred nineteen thousand, six hundred eighty-nine".