63390109 has 2 divisors, whose sum is σ = 63390110. Its totient is φ = 63390108.

The previous prime is 63390083. The next prime is 63390121. The reversal of 63390109 is 90109336.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62758084 + 632025 = 7922^2 + 795^2 .

It is a cyclic number.

It is not a de Polignac number, because 63390109 - 2⁵ = 63390077 is a prime.

It is a super-3 number, since 3×63390109³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63397109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31695054 + 31695055.

It is an arithmetic number, because the mean of its divisors is an integer number (31695055).

Almost surely, 2^63390109 is an apocalyptic number.

It is an amenable number.

63390109 is a deficient number, since it is larger than the sum of its proper divisors (1).

63390109 is an equidigital number, since it uses as much as digits as its factorization.

63390109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4374, while the sum is 31.

The square root of 63390109 is about 7961.7905649420. The cubic root of 63390109 is about 398.7253361448.

The spelling of 63390109 in words is "sixty-three million, three hundred ninety thousand, one hundred nine".