3971522032 has 20 divisors (see below), whose sum is σ = 7704854080. Its totient is φ = 1983172608.

The previous prime is 3971522017. The next prime is 3971522041. The reversal of 3971522032 is 2302251793.

It is a super-2 number, since 2×3971522032² = 31545974501322818048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149088 + ... + 173695.

It is an arithmetic number, because the mean of its divisors is an integer number (385242704).

Almost surely, 2^3971522032 is an apocalyptic number.

It is an amenable number.

3971522032 is a deficient number, since it is larger than the sum of its proper divisors (3733332048).

3971522032 is a wasteful number, since it uses less digits than its factorization.

3971522032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323560 (or 323554 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 3971522032 is about 63020.0129482691. The cubic root of 3971522032 is about 1583.6249133132.

The spelling of 3971522032 in words is "three billion, nine hundred seventy-one million, five hundred twenty-two thousand, thirty-two".