63490887 has 6 divisors (see below), whose sum is σ = 91709072. Its totient is φ = 42327252.

The previous prime is 63490871. The next prime is 63490897. The reversal of 63490887 is 78809436.

It is a happy number.

63490887 is a `hidden beast` number, since 634 + 9 + 0 + 8 + 8 + 7 = 666.

It is not a de Polignac number, because 63490887 - 2⁴ = 63490871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63490807) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3527263 + ... + 3527280.

Almost surely, 2^63490887 is an apocalyptic number.

63490887 is a deficient number, since it is larger than the sum of its proper divisors (28218185).

63490887 is a wasteful number, since it uses less digits than its factorization.

63490887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7054549 (or 7054546 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 63490887 is about 7968.1169042629. The cubic root of 63490887 is about 398.9365229639.

The spelling of 63490887 in words is "sixty-three million, four hundred ninety thousand, eight hundred eighty-seven".