3281688971 has 4 divisors (see below), whose sum is σ = 3580024344. Its totient is φ = 2983353600.

The previous prime is 3281688961. The next prime is 3281688979. The reversal of 3281688971 is 1798861823.

3281688971 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1798861823 = 11 ⋅163532893.

It is a cyclic number.

It is not a de Polignac number, because 3281688971 - 2²² = 3277494667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3281688979) 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, 149167670 + ... + 149167691.

It is an arithmetic number, because the mean of its divisors is an integer number (895006086).

Almost surely, 2^3281688971 is an apocalyptic number.

3281688971 is a deficient number, since it is larger than the sum of its proper divisors (298335373).

3281688971 is a wasteful number, since it uses less digits than its factorization.

3281688971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298335372.

The product of its digits is 1161216, while the sum is 53.

The square root of 3281688971 is about 57286.0277118252. The cubic root of 3281688971 is about 1486.0467508706.

The spelling of 3281688971 in words is "three billion, two hundred eighty-one million, six hundred eighty-eight thousand, nine hundred seventy-one".