4234775621 has 2 divisors, whose sum is σ = 4234775622. Its totient is φ = 4234775620.

The previous prime is 4234775609. The next prime is 4234775647. The reversal of 4234775621 is 1265774324.

4234775621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2546716225 + 1688059396 = 50465^2 + 41086^2 .

It is a cyclic number.

It is not a de Polignac number, because 4234775621 - 2²⁶ = 4167666757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4234775821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2117387810 + 2117387811.

It is an arithmetic number, because the mean of its divisors is an integer number (2117387811).

Almost surely, 2^4234775621 is an apocalyptic number.

It is an amenable number.

4234775621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4234775621 is an equidigital number, since it uses as much as digits as its factorization.

4234775621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 282240, while the sum is 41.

The square root of 4234775621 is about 65075.1536379285. The cubic root of 4234775621 is about 1617.8694265946.

The spelling of 4234775621 in words is "four billion, two hundred thirty-four million, seven hundred seventy-five thousand, six hundred twenty-one".