3894037689 has 16 divisors (see below), whose sum is σ = 5490261504. Its totient is φ = 2451004800.

The previous prime is 3894037681. The next prime is 3894037699. The reversal of 3894037689 is 9867304983.

It is a happy number.

It is not a de Polignac number, because 3894037689 - 2³ = 3894037681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3894037681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 506814 + ... + 514439.

It is an arithmetic number, because the mean of its divisors is an integer number (343141344).

Almost surely, 2^3894037689 is an apocalyptic number.

It is an amenable number.

3894037689 is a deficient number, since it is larger than the sum of its proper divisors (1596223815).

3894037689 is a wasteful number, since it uses less digits than its factorization.

3894037689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021328.

The product of its (nonzero) digits is 7838208, while the sum is 57.

The square root of 3894037689 is about 62402.2250324458. The cubic root of 3894037689 is about 1573.2583672816.

The spelling of 3894037689 in words is "three billion, eight hundred ninety-four million, thirty-seven thousand, six hundred eighty-nine".