3989669893 has 8 divisors (see below), whose sum is σ = 4364701056. Its totient is φ = 3616694400.

The previous prime is 3989669891. The next prime is 3989669909.

3989669893 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 3989669893 - 2¹ = 3989669891 is a prime.

It is a super-2 number, since 2×3989669893² = 31834931710221262898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3989669891) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509853 + ... + 517618.

It is an arithmetic number, because the mean of its divisors is an integer number (545587632).

Almost surely, 2^3989669893 is an apocalyptic number.

It is an amenable number.

3989669893 is a deficient number, since it is larger than the sum of its proper divisors (375031163).

3989669893 is a wasteful number, since it uses less digits than its factorization.

3989669893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027835.

The product of its digits is 136048896, while the sum is 70.

The square root of 3989669893 is about 63163.8337421028. The cubic root of 3989669893 is about 1586.0333720418.

The spelling of 3989669893 in words is "three billion, nine hundred eighty-nine million, six hundred sixty-nine thousand, eight hundred ninety-three".