3207385221 has 8 divisors (see below), whose sum is σ = 4295189280. Its totient is φ = 2128918992.

The previous prime is 3207385183. The next prime is 3207385243. The reversal of 3207385221 is 1225837023.

3207385221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3207385221 - 2⁹ = 3207384709 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3207385261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2333655 + ... + 2335028.

It is an arithmetic number, because the mean of its divisors is an integer number (536898660).

Almost surely, 2^3207385221 is an apocalyptic number.

It is an amenable number.

3207385221 is a deficient number, since it is larger than the sum of its proper divisors (1087804059).

3207385221 is a wasteful number, since it uses less digits than its factorization.

3207385221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4668915.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 3207385221 is about 56633.7816236917. The cubic root of 3207385221 is about 1474.7453695857.

The spelling of 3207385221 in words is "three billion, two hundred seven million, three hundred eighty-five thousand, two hundred twenty-one".