7914305221 has 8 divisors (see below), whose sum is σ = 8289112320. Its totient is φ = 7542057072.

The previous prime is 7914305213. The next prime is 7914305227. The reversal of 7914305221 is 1225034197.

It is a happy number.

7914305221 is digitally balanced in base 3, 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 a cyclic number.

It is not a de Polignac number, because 7914305221 - 2³ = 7914305213 is a prime.

It is a super-2 number, since 2×7914305221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7914305227) 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, 633405 + ... + 645778.

It is an arithmetic number, because the mean of its divisors is an integer number (1036139040).

Almost surely, 2^7914305221 is an apocalyptic number.

It is an amenable number.

7914305221 is a deficient number, since it is larger than the sum of its proper divisors (374807099).

7914305221 is a wasteful number, since it uses less digits than its factorization.

7914305221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279475.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 7914305221 is about 88962.3809314926. The cubic root of 7914305221 is about 1992.8331169874.

The spelling of 7914305221 in words is "seven billion, nine hundred fourteen million, three hundred five thousand, two hundred twenty-one".