3928058881 has 4 divisors (see below), whose sum is σ = 3928221232. Its totient is φ = 3927896532.

The previous prime is 3928058873. The next prime is 3928058891. The reversal of 3928058881 is 1888508293.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3928058881 - 2³ = 3928058873 is a prime.

It is a super-2 number, since 2×3928058881² = 30859293145205944322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3928058851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36795 + ... + 95968.

It is an arithmetic number, because the mean of its divisors is an integer number (982055308).

Almost surely, 2^3928058881 is an apocalyptic number.

It is an amenable number.

3928058881 is a deficient number, since it is larger than the sum of its proper divisors (162351).

3928058881 is a wasteful number, since it uses less digits than its factorization.

3928058881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162350.

The product of its (nonzero) digits is 1105920, while the sum is 52.

The square root of 3928058881 is about 62674.2282042627. The cubic root of 3928058881 is about 1577.8268046381.

The spelling of 3928058881 in words is "three billion, nine hundred twenty-eight million, fifty-eight thousand, eight hundred eighty-one".