7436227721 has 8 divisors (see below), whose sum is σ = 8025548160. Its totient is φ = 6849379152.

The previous prime is 7436227651. The next prime is 7436227723. The reversal of 7436227721 is 1277226347.

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 7436227721 - 2¹⁰ = 7436226697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7436227723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 611711 + ... + 623748.

It is an arithmetic number, because the mean of its divisors is an integer number (1003193520).

Almost surely, 2^7436227721 is an apocalyptic number.

It is an amenable number.

7436227721 is a deficient number, since it is larger than the sum of its proper divisors (589320439).

7436227721 is a wasteful number, since it uses less digits than its factorization.

7436227721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235935.

The product of its digits is 197568, while the sum is 41.

The square root of 7436227721 is about 86233.5649326873. The cubic root of 7436227721 is about 1951.8700203507.

The spelling of 7436227721 in words is "seven billion, four hundred thirty-six million, two hundred twenty-seven thousand, seven hundred twenty-one".