3989965533 has 8 divisors (see below), whose sum is σ = 5332242048. Its totient is φ = 2653833024.

The previous prime is 3989965523. The next prime is 3989965583. The reversal of 3989965533 is 3355699893.

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

It is not a de Polignac number, because 3989965533 - 2⁴ = 3989965517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3989965523) 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, 1534485 + ... + 1537082.

It is an arithmetic number, because the mean of its divisors is an integer number (666530256).

Almost surely, 2^3989965533 is an apocalyptic number.

It is an amenable number.

3989965533 is a deficient number, since it is larger than the sum of its proper divisors (1342276515).

3989965533 is a wasteful number, since it uses less digits than its factorization.

3989965533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3072003.

The product of its digits is 23619600, while the sum is 60.

The square root of 3989965533 is about 63166.1739620186. The cubic root of 3989965533 is about 1586.0725468221.

The spelling of 3989965533 in words is "three billion, nine hundred eighty-nine million, nine hundred sixty-five thousand, five hundred thirty-three".