3996894841 has 9 divisors (see below), whose sum is σ = 4030105989. Its totient is φ = 3963956700.

The previous prime is 3996894833. The next prime is 3996894857. The reversal of 3996894841 is 1484986993.

The square root of 3996894841 is 63221.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 3996894841 - 2³ = 3996894833 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 3996894841.

It is not an unprimeable number, because it can be changed into a prime (3996894641) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12075046 + ... + 12075376.

Almost surely, 2^3996894841 is an apocalyptic number.

3996894841 is the 63221-st square number.

3996894841 is the 31611-st centered octagonal number.

It is an amenable number.

3996894841 is a deficient number, since it is larger than the sum of its proper divisors (33211148).

3996894841 is an frugal number, since it uses more digits than its factorization.

3996894841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044 (or 522 counting only the distinct ones).

The product of its digits is 13436928, while the sum is 61.

The cubic root of 3996894841 is about 1586.9901845772.

The spelling of 3996894841 in words is "three billion, nine hundred ninety-six million, eight hundred ninety-four thousand, eight hundred forty-one".