3969854389 has 32 divisors (see below), whose sum is σ = 4314746880. Its totient is φ = 3645408000.

The previous prime is 3969854381. The next prime is 3969854407. The reversal of 3969854389 is 9834589693.

It is a cyclic number.

It is not a de Polignac number, because 3969854389 - 2³ = 3969854381 is a prime.

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 3969854389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3969854381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7799067 + ... + 7799575.

It is an arithmetic number, because the mean of its divisors is an integer number (134835840).

Almost surely, 2^3969854389 is an apocalyptic number.

It is an amenable number.

3969854389 is a deficient number, since it is larger than the sum of its proper divisors (344892491).

3969854389 is a wasteful number, since it uses less digits than its factorization.

3969854389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741.

The product of its digits is 50388480, while the sum is 64.

The square root of 3969854389 is about 63006.7805001970. The cubic root of 3969854389 is about 1583.4032274618.

The spelling of 3969854389 in words is "three billion, nine hundred sixty-nine million, eight hundred fifty-four thousand, three hundred eighty-nine".