3971236896 has 240 divisors, whose sum is σ = 13154980608. Its totient is φ = 1164326400.

The previous prime is 3971236883. The next prime is 3971236937. The reversal of 3971236896 is 6986321793.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 881626 + ... + 886118.

Almost surely, 2^3971236896 is an apocalyptic number.

3971236896 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3971236896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6577490304).

3971236896 is an abundant number, since it is smaller than the sum of its proper divisors (9183743712).

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

3971236896 is a wasteful number, since it uses less digits than its factorization.

3971236896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4557 (or 4540 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 54.

The square root of 3971236896 is about 63017.7506421802. The cubic root of 3971236896 is about 1583.5870135461.

The spelling of 3971236896 in words is "three billion, nine hundred seventy-one million, two hundred thirty-six thousand, eight hundred ninety-six".