4059917021 has 2 divisors, whose sum is σ = 4059917022. Its totient is φ = 4059917020.

The previous prime is 4059916981. The next prime is 4059917051. The reversal of 4059917021 is 1207199504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2516527225 + 1543389796 = 50165^2 + 39286^2 .

It is a cyclic number.

It is not a de Polignac number, because 4059917021 - 2⁶ = 4059916957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4059917051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2029958510 + 2029958511.

It is an arithmetic number, because the mean of its divisors is an integer number (2029958511).

Almost surely, 2^4059917021 is an apocalyptic number.

It is an amenable number.

4059917021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4059917021 is an equidigital number, since it uses as much as digits as its factorization.

4059917021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 38.

The square root of 4059917021 is about 63717.4781437558. The cubic root of 4059917021 is about 1595.2878312325.

The spelling of 4059917021 in words is "four billion, fifty-nine million, nine hundred seventeen thousand, twenty-one".