4276240921 has 2 divisors, whose sum is σ = 4276240922. Its totient is φ = 4276240920.

The previous prime is 4276240867. The next prime is 4276240933. The reversal of 4276240921 is 1290426724.

4276240921 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4115864025 + 160376896 = 64155^2 + 12664^2 .

It is a cyclic number.

It is not a de Polignac number, because 4276240921 - 2¹¹ = 4276238873 is a prime.

It is not a weakly prime, because it can be changed into another prime (4276240951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2138120460 + 2138120461.

It is an arithmetic number, because the mean of its divisors is an integer number (2138120461).

Almost surely, 2^4276240921 is an apocalyptic number.

It is an amenable number.

4276240921 is a deficient number, since it is larger than the sum of its proper divisors (1).

4276240921 is an equidigital number, since it uses as much as digits as its factorization.

4276240921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 4276240921 is about 65392.9730246301. The cubic root of 4276240921 is about 1623.1328039393.

The spelling of 4276240921 in words is "four billion, two hundred seventy-six million, two hundred forty thousand, nine hundred twenty-one".