3997822612 has 24 divisors (see below), whose sum is σ = 8465978304. Its totient is φ = 1612566912.

The previous prime is 3997822603. The next prime is 3997822667. The reversal of 3997822612 is 2162287993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4198918 + ... + 4199869.

It is an arithmetic number, because the mean of its divisors is an integer number (352749096).

Almost surely, 2^3997822612 is an apocalyptic number.

It is an amenable number.

3997822612 is an abundant number, since it is smaller than the sum of its proper divisors (4468155692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3997822612 is a wasteful number, since it uses less digits than its factorization.

3997822612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8398815 (or 8398813 counting only the distinct ones).

The product of its digits is 653184, while the sum is 49.

The square root of 3997822612 is about 63228.3370965898. The cubic root of 3997822612 is about 1587.1129673557.

The spelling of 3997822612 in words is "three billion, nine hundred ninety-seven million, eight hundred twenty-two thousand, six hundred twelve".