63487634 has 24 divisors (see below), whose sum is σ = 113779980. Its totient is φ = 26472096.

The previous prime is 63487631. The next prime is 63487643. The reversal of 63487634 is 43678436.

It can be written as a sum of positive squares in 2 ways, for example, as 62457409 + 1030225 = 7903^2 + 1015^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 63487591 and 63487600.

It is not an unprimeable number, because it can be changed into a prime (63487631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5129 + ... + 12380.

Almost surely, 2^63487634 is an apocalyptic number.

63487634 is a deficient number, since it is larger than the sum of its proper divisors (50292346).

63487634 is a wasteful number, since it uses less digits than its factorization.

63487634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17562 (or 17555 counting only the distinct ones).

The product of its digits is 290304, while the sum is 41.

The square root of 63487634 is about 7967.9127756270. The cubic root of 63487634 is about 398.9297095836.

The spelling of 63487634 in words is "sixty-three million, four hundred eighty-seven thousand, six hundred thirty-four".