63418477 has 2 divisors, whose sum is σ = 63418478. Its totient is φ = 63418476.

The previous prime is 63418471. The next prime is 63418493. The reversal of 63418477 is 77481436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50893956 + 12524521 = 7134^2 + 3539^2 .

It is a cyclic number.

It is not a de Polignac number, because 63418477 - 2³ = 63418469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63418471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31709238 + 31709239.

It is an arithmetic number, because the mean of its divisors is an integer number (31709239).

Almost surely, 2^63418477 is an apocalyptic number.

It is an amenable number.

63418477 is a deficient number, since it is larger than the sum of its proper divisors (1).

63418477 is an equidigital number, since it uses as much as digits as its factorization.

63418477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 112896, while the sum is 40.

The square root of 63418477 is about 7963.5718744794. The cubic root of 63418477 is about 398.7848057458.

The spelling of 63418477 in words is "sixty-three million, four hundred eighteen thousand, four hundred seventy-seven".