3489168221 has 24 divisors (see below), whose sum is σ = 4485066432. Its totient is φ = 2655576000.

The previous prime is 3489168209. The next prime is 3489168223. The reversal of 3489168221 is 1228619843.

It is a happy number.

It is not a de Polignac number, because 3489168221 - 2²² = 3484973917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3489168223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11480 + ... + 84321.

It is an arithmetic number, because the mean of its divisors is an integer number (186877768).

Almost surely, 2^3489168221 is an apocalyptic number.

It is an amenable number.

3489168221 is a deficient number, since it is larger than the sum of its proper divisors (995898211).

3489168221 is a wasteful number, since it uses less digits than its factorization.

3489168221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95873 (or 95862 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The square root of 3489168221 is about 59069.1816516870. The cubic root of 3489168221 is about 1516.7265978384.

The spelling of 3489168221 in words is "three billion, four hundred eighty-nine million, one hundred sixty-eight thousand, two hundred twenty-one".