3221043871 has 16 divisors (see below), whose sum is σ = 3424165888. Its totient is φ = 3025058400.

The previous prime is 3221043863. The next prime is 3221043887. The reversal of 3221043871 is 1783401223.

It is a cyclic number.

It is not a de Polignac number, because 3221043871 - 2³ = 3221043863 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3221043821) 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, 201586 + ... + 216976.

It is an arithmetic number, because the mean of its divisors is an integer number (214010368).

Almost surely, 2^3221043871 is an apocalyptic number.

3221043871 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3221043871 is a deficient number, since it is larger than the sum of its proper divisors (203122017).

3221043871 is a wasteful number, since it uses less digits than its factorization.

3221043871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15622.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 3221043871 is about 56754.2409957177. The cubic root of 3221043871 is about 1476.8358060709.

The spelling of 3221043871 in words is "three billion, two hundred twenty-one million, forty-three thousand, eight hundred seventy-one".