3985763869 has 8 divisors (see below), whose sum is σ = 4115877920. Its totient is φ = 3857350896.

The previous prime is 3985763827. The next prime is 3985763927. The reversal of 3985763869 is 9683675893.

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 3985763869 - 2¹⁹ = 3985239581 is a prime.

It is a super-2 number, since 2×3985763869² = 31772627238851698322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3985763869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3985763819) 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, 420507 + ... + 429880.

It is an arithmetic number, because the mean of its divisors is an integer number (514484740).

Almost surely, 2^3985763869 is an apocalyptic number.

It is an amenable number.

3985763869 is a deficient number, since it is larger than the sum of its proper divisors (130114051).

3985763869 is a wasteful number, since it uses less digits than its factorization.

3985763869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850539.

The product of its digits is 58786560, while the sum is 64.

The square root of 3985763869 is about 63132.9063880319. The cubic root of 3985763869 is about 1585.5156093015.

The spelling of 3985763869 in words is "three billion, nine hundred eighty-five million, seven hundred sixty-three thousand, eight hundred sixty-nine".