3932159881 has 16 divisors (see below), whose sum is σ = 4260758544. Its totient is φ = 3607363584.

The previous prime is 3932159837. The next prime is 3932159887. The reversal of 3932159881 is 1889512393.

3932159881 = 44340² + 44341².

It can be written as a sum of positive squares in 8 ways, for example, as 853574656 + 3078585225 = 29216^2 + 55485^2 .

It is a 6-Lehmer number, since φ(3932159881) divides (3932159881-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 3932159881 - 2¹⁹ = 3931635593 is a prime.

It is a super-2 number, since 2×3932159881² = 30923762659491868322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3932159887) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1859881 + ... + 1861993.

It is an arithmetic number, because the mean of its divisors is an integer number (266297409).

Almost surely, 2^3932159881 is an apocalyptic number.

3932159881 is the 44341-st centered square number.

It is an amenable number.

3932159881 is a deficient number, since it is larger than the sum of its proper divisors (328598663).

3932159881 is a wasteful number, since it uses less digits than its factorization.

3932159881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2940.

The product of its digits is 466560, while the sum is 49.

The square root of 3932159881 is about 62706.9364663910. The cubic root of 3932159881 is about 1578.3757116492.

The spelling of 3932159881 in words is "three billion, nine hundred thirty-two million, one hundred fifty-nine thousand, eight hundred eighty-one".