3971772896 has 48 divisors (see below), whose sum is σ = 9623918304. Its totient is φ = 1571249664.

The previous prime is 3971772859. The next prime is 3971772899. The reversal of 3971772896 is 6982771793.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3971772899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 679055 + ... + 684878.

It is an arithmetic number, because the mean of its divisors is an integer number (200498298).

Almost surely, 2^3971772896 is an apocalyptic number.

It is an amenable number.

3971772896 is an abundant number, since it is smaller than the sum of its proper divisors (5652145408).

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

3971772896 is a wasteful number, since it uses less digits than its factorization.

3971772896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363963 (or 1363955 counting only the distinct ones).

The product of its digits is 8001504, while the sum is 59.

The square root of 3971772896 is about 63022.0032686997. The cubic root of 3971772896 is about 1583.6582562073.

The spelling of 3971772896 in words is "three billion, nine hundred seventy-one million, seven hundred seventy-two thousand, eight hundred ninety-six".