3971436432 has 40 divisors (see below), whose sum is σ = 10267051200. Its totient is φ = 1322843520.

The previous prime is 3971436397. The next prime is 3971436467. The reversal of 3971436432 is 2346341793.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3971436397) and next prime (3971436467).

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, 37582 + ... + 96722.

It is an arithmetic number, because the mean of its divisors is an integer number (256676280).

Almost surely, 2^3971436432 is an apocalyptic number.

It is an amenable number.

3971436432 is an abundant number, since it is smaller than the sum of its proper divisors (6295614768).

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

3971436432 is a wasteful number, since it uses less digits than its factorization.

3971436432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60551 (or 60545 counting only the distinct ones).

The product of its digits is 326592, while the sum is 42.

The square root of 3971436432 is about 63019.3337952727. Note that the first 3 decimals coincide. The cubic root of 3971436432 is about 1583.6135357049.

The spelling of 3971436432 in words is "three billion, nine hundred seventy-one million, four hundred thirty-six thousand, four hundred thirty-two".