7064392221 has 12 divisors (see below), whose sum is σ = 10204903072. Its totient is φ = 4709234376.

The previous prime is 7064392193. The next prime is 7064392267. The reversal of 7064392221 is 1222934607.

7064392221 is a `hidden beast` number, since 7 + 0 + 643 + 9 + 2 + 2 + 2 + 1 = 666.

It is not a de Polignac number, because 7064392221 - 2¹³ = 7064384029 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 (7064372221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 152430 + ... + 193296.

Almost surely, 2^7064392221 is an apocalyptic number.

It is an amenable number.

7064392221 is a deficient number, since it is larger than the sum of its proper divisors (3140510851).

7064392221 is a wasteful number, since it uses less digits than its factorization.

7064392221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60080 (or 60077 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 7064392221 is about 84049.9388518516. The cubic root of 7064392221 is about 1918.7789021086.

The spelling of 7064392221 in words is "seven billion, sixty-four million, three hundred ninety-two thousand, two hundred twenty-one".