4745347221 has 4 divisors (see below), whose sum is σ = 6327129632. Its totient is φ = 3163564812.

The previous prime is 4745347219. The next prime is 4745347231. The reversal of 4745347221 is 1227435474.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4745347221 - 2¹ = 4745347219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4745347221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4745347231) 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 3 ways as a sum of consecutive naturals, for example, 790891201 + ... + 790891206.

It is an arithmetic number, because the mean of its divisors is an integer number (1581782408).

Almost surely, 2^4745347221 is an apocalyptic number.

It is an amenable number.

4745347221 is a deficient number, since it is larger than the sum of its proper divisors (1581782411).

4745347221 is a wasteful number, since it uses less digits than its factorization.

4745347221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1581782410.

The product of its digits is 188160, while the sum is 39.

The square root of 4745347221 is about 68886.4806838033. The cubic root of 4745347221 is about 1680.4386634413.

The spelling of 4745347221 in words is "four billion, seven hundred forty-five million, three hundred forty-seven thousand, two hundred twenty-one".