63787005 has 12 divisors (see below), whose sum is σ = 110564220. Its totient is φ = 34019712.

The previous prime is 63786997. The next prime is 63787007. The reversal of 63787005 is 50078736.

It can be written as a sum of positive squares in 2 ways, for example, as 41912676 + 21874329 = 6474^2 + 4677^2 .

It is not a de Polignac number, because 63787005 - 2³ = 63786997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63787007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 708700 + ... + 708789.

It is an arithmetic number, because the mean of its divisors is an integer number (9213685).

Almost surely, 2^63787005 is an apocalyptic number.

It is an amenable number.

63787005 is a deficient number, since it is larger than the sum of its proper divisors (46777215).

63787005 is a wasteful number, since it uses less digits than its factorization.

63787005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417500 (or 1417497 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 63787005 is about 7986.6767181350. The cubic root of 63787005 is about 399.5557672424. Note that the first 3 decimals are identical.

The spelling of 63787005 in words is "sixty-three million, seven hundred eighty-seven thousand, five".