4797022721 has 4 divisors (see below), whose sum is σ = 4800005700. Its totient is φ = 4794039744.

The previous prime is 4797022717. The next prime is 4797022723. The reversal of 4797022721 is 1272207974.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2635795600 + 2161227121 = 51340^2 + 46489^2 .

It is a cyclic number.

It is not a de Polignac number, because 4797022721 - 2² = 4797022717 is a prime.

It is a super-2 number, since 2×4797022721² = 46022853971580487682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4797022723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1489076 + ... + 1492293.

It is an arithmetic number, because the mean of its divisors is an integer number (1200001425).

Almost surely, 2^4797022721 is an apocalyptic number.

It is an amenable number.

4797022721 is a deficient number, since it is larger than the sum of its proper divisors (2982979).

4797022721 is a wasteful number, since it uses less digits than its factorization.

4797022721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2982978.

The product of its (nonzero) digits is 98784, while the sum is 41.

The square root of 4797022721 is about 69260.5423094564. The cubic root of 4797022721 is about 1686.5164898074.

The spelling of 4797022721 in words is "four billion, seven hundred ninety-seven million, twenty-two thousand, seven hundred twenty-one".