7950730221 has 48 divisors (see below), whose sum is σ = 13980605184. Its totient is φ = 4250322432.

The previous prime is 7950730189. The next prime is 7950730243. The reversal of 7950730221 is 1220370597.

It is not a de Polignac number, because 7950730221 - 2⁵ = 7950730189 is a prime.

It is a super-2 number, since 2×7950730221² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7950730261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 156631 + ... + 201083.

It is an arithmetic number, because the mean of its divisors is an integer number (291262608).

Almost surely, 2^7950730221 is an apocalyptic number.

It is an amenable number.

7950730221 is a deficient number, since it is larger than the sum of its proper divisors (6029874963).

7950730221 is a wasteful number, since it uses less digits than its factorization.

7950730221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44650 (or 44647 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 36.

The square root of 7950730221 is about 89166.8672826404. The cubic root of 7950730221 is about 1995.8857272669.

The spelling of 7950730221 in words is "seven billion, nine hundred fifty million, seven hundred thirty thousand, two hundred twenty-one".