63315719 has 2 divisors, whose sum is σ = 63315720. Its totient is φ = 63315718.

The previous prime is 63315677. The next prime is 63315731. The reversal of 63315719 is 91751336.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63315719 - 2²⁰ = 62267143 is a prime.

It is a super-2 number, since 2×63315719² = 8017760544973922, which contains 22 as substring.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63315739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31657859 + 31657860.

It is an arithmetic number, because the mean of its divisors is an integer number (31657860).

Almost surely, 2^63315719 is an apocalyptic number.

63315719 is a deficient number, since it is larger than the sum of its proper divisors (1).

63315719 is an equidigital number, since it uses as much as digits as its factorization.

63315719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17010, while the sum is 35.

The square root of 63315719 is about 7957.1175057303. The cubic root of 63315719 is about 398.5693034528.

The spelling of 63315719 in words is "sixty-three million, three hundred fifteen thousand, seven hundred nineteen".