63038021 has 2 divisors, whose sum is σ = 63038022. Its totient is φ = 63038020.

The previous prime is 63037999. The next prime is 63038081. The reversal of 63038021 is 12083036.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40132225 + 22905796 = 6335^2 + 4786^2 .

It is a cyclic number.

It is not a de Polignac number, because 63038021 - 2¹⁸ = 62775877 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63038081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31519010 + 31519011.

It is an arithmetic number, because the mean of its divisors is an integer number (31519011).

Almost surely, 2^63038021 is an apocalyptic number.

It is an amenable number.

63038021 is a deficient number, since it is larger than the sum of its proper divisors (1).

63038021 is an equidigital number, since it uses as much as digits as its factorization.

63038021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 63038021 is about 7939.6486698090. The cubic root of 63038021 is about 397.9857511123.

The spelling of 63038021 in words is "sixty-three million, thirty-eight thousand, twenty-one".