4227770765 has 4 divisors (see below), whose sum is σ = 5073324924. Its totient is φ = 3382216608.

The previous prime is 4227770761. The next prime is 4227770779. The reversal of 4227770765 is 5670777224.

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 1367446441 + 2860324324 = 36979^2 + 53482^2 .

It is a cyclic number.

It is not a de Polignac number, because 4227770765 - 2² = 4227770761 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4227770761) 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, 422777072 + ... + 422777081.

It is an arithmetic number, because the mean of its divisors is an integer number (1268331231).

Almost surely, 2^4227770765 is an apocalyptic number.

It is an amenable number.

4227770765 is a deficient number, since it is larger than the sum of its proper divisors (845554159).

4227770765 is an equidigital number, since it uses as much as digits as its factorization.

4227770765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845554158.

The product of its (nonzero) digits is 1152480, while the sum is 47.

The square root of 4227770765 is about 65021.3100836949. The cubic root of 4227770765 is about 1616.9768805400.

The spelling of 4227770765 in words is "four billion, two hundred twenty-seven million, seven hundred seventy thousand, seven hundred sixty-five".