63386977 has 2 divisors, whose sum is σ = 63386978. Its totient is φ = 63386976.

The previous prime is 63386969. The next prime is 63387001. The reversal of 63386977 is 77968336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63107136 + 279841 = 7944^2 + 529^2 .

It is a cyclic number.

It is not a de Polignac number, because 63386977 - 2³ = 63386969 is a prime.

It is a super-4 number, since 4×63386977⁴ (a number of 32 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63386977.

It is not a weakly prime, because it can be changed into another prime (63386927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31693488 + 31693489.

It is an arithmetic number, because the mean of its divisors is an integer number (31693489).

Almost surely, 2^63386977 is an apocalyptic number.

It is an amenable number.

63386977 is a deficient number, since it is larger than the sum of its proper divisors (1).

63386977 is an equidigital number, since it uses as much as digits as its factorization.

63386977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1143072, while the sum is 49.

The square root of 63386977 is about 7961.5938730885. The cubic root of 63386977 is about 398.7187692511.

The spelling of 63386977 in words is "sixty-three million, three hundred eighty-six thousand, nine hundred seventy-seven".