63315677 has 2 divisors, whose sum is σ = 63315678. Its totient is φ = 63315676.

The previous prime is 63315643. The next prime is 63315719. The reversal of 63315677 is 77651336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42758521 + 20557156 = 6539^2 + 4534^2 .

It is a cyclic number.

It is not a de Polignac number, because 63315677 - 2¹⁴ = 63299293 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63315677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63315607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31657838 + 31657839.

It is an arithmetic number, because the mean of its divisors is an integer number (31657839).

Almost surely, 2^63315677 is an apocalyptic number.

It is an amenable number.

63315677 is a deficient number, since it is larger than the sum of its proper divisors (1).

63315677 is an equidigital number, since it uses as much as digits as its factorization.

63315677 is an evil number, because the sum of its binary digits is even.

The product of its digits is 79380, while the sum is 38.

The square root of 63315677 is about 7957.1148665832. The cubic root of 63315677 is about 398.5692153235.

The spelling of 63315677 in words is "sixty-three million, three hundred fifteen thousand, six hundred seventy-seven".