3871072431 has 32 divisors (see below), whose sum is σ = 6336299520. Its totient is φ = 2323297152.

The previous prime is 3871072417. The next prime is 3871072451. The reversal of 3871072431 is 1342701783.

It is not a de Polignac number, because 3871072431 - 2¹⁷ = 3870941359 is a prime.

It is a super-2 number, since 2×3871072431² = 29970403532096499522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871072451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 172785 + ... + 193898.

It is an arithmetic number, because the mean of its divisors is an integer number (198009360).

Almost surely, 2^3871072431 is an apocalyptic number.

3871072431 is a deficient number, since it is larger than the sum of its proper divisors (2465227089).

3871072431 is a wasteful number, since it uses less digits than its factorization.

3871072431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366732 (or 366726 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 3871072431 is about 62217.9429987845. The cubic root of 3871072431 is about 1570.1594806012.

The spelling of 3871072431 in words is "three billion, eight hundred seventy-one million, seventy-two thousand, four hundred thirty-one".