3506064221 has 16 divisors (see below), whose sum is σ = 3911604480. Its totient is φ = 3115768320.

The previous prime is 3506064197. The next prime is 3506064293. The reversal of 3506064221 is 1224606053.

It is a cyclic number.

It is not a de Polignac number, because 3506064221 - 2⁶ = 3506064157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3506064521) 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, 71420 + ... + 110058.

It is an arithmetic number, because the mean of its divisors is an integer number (244475280).

Almost surely, 2^3506064221 is an apocalyptic number.

It is an amenable number.

3506064221 is a deficient number, since it is larger than the sum of its proper divisors (405540259).

3506064221 is a wasteful number, since it uses less digits than its factorization.

3506064221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38836.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 3506064221 is about 59212.0276717493. The cubic root of 3506064221 is about 1519.1708631574.

The spelling of 3506064221 in words is "three billion, five hundred six million, sixty-four thousand, two hundred twenty-one".