63117629 has 2 divisors, whose sum is σ = 63117630. Its totient is φ = 63117628.

The previous prime is 63117539. The next prime is 63117631. The reversal of 63117629 is 92671136.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39400729 + 23716900 = 6277^2 + 4870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63117629 is a prime.

Together with 63117631, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63117529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31558814 + 31558815.

It is an arithmetic number, because the mean of its divisors is an integer number (31558815).

Almost surely, 2^63117629 is an apocalyptic number.

It is an amenable number.

63117629 is a deficient number, since it is larger than the sum of its proper divisors (1).

63117629 is an equidigital number, since it uses as much as digits as its factorization.

63117629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 35.

The square root of 63117629 is about 7944.6604080980. The cubic root of 63117629 is about 398.1532136561.

The spelling of 63117629 in words is "sixty-three million, one hundred seventeen thousand, six hundred twenty-nine".