3285517021 has 2 divisors, whose sum is σ = 3285517022. Its totient is φ = 3285517020.

The previous prime is 3285516931. The next prime is 3285517033. The reversal of 3285517021 is 1207155823.

3285517021 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., 2278152900 + 1007364121 = 47730^2 + 31739^2 .

It is a cyclic number.

It is not a de Polignac number, because 3285517021 - 2¹³ = 3285508829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3285517321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1642758510 + 1642758511.

It is an arithmetic number, because the mean of its divisors is an integer number (1642758511).

Almost surely, 2^3285517021 is an apocalyptic number.

It is an amenable number.

3285517021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3285517021 is an equidigital number, since it uses as much as digits as its factorization.

3285517021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 3285517021 is about 57319.4296988377. The cubic root of 3285517021 is about 1486.6243447894.

The spelling of 3285517021 in words is "three billion, two hundred eighty-five million, five hundred seventeen thousand, twenty-one".