3634493989 has 8 divisors (see below), whose sum is σ = 4194834048. Its totient is φ = 3084435600.

The previous prime is 3634493981. The next prime is 3634494013. The reversal of 3634493989 is 9893944363.

3634493989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3634493989 - 2³ = 3634493981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3634493981) 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, 2569657 + ... + 2571070.

It is an arithmetic number, because the mean of its divisors is an integer number (524354256).

Almost surely, 2^3634493989 is an apocalyptic number.

It is an amenable number.

3634493989 is a deficient number, since it is larger than the sum of its proper divisors (560340059).

3634493989 is a wasteful number, since it uses less digits than its factorization.

3634493989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5140835.

The product of its digits is 15116544, while the sum is 58.

The square root of 3634493989 is about 60286.7646254134. The cubic root of 3634493989 is about 1537.4983261621.

The spelling of 3634493989 in words is "three billion, six hundred thirty-four million, four hundred ninety-three thousand, nine hundred eighty-nine".