63671536 has 20 divisors (see below), whose sum is σ = 123541200. Its totient is φ = 31789952.

The previous prime is 63671513. The next prime is 63671539. The reversal of 63671536 is 63517636.

It is a junction number, because it is equal to n+sod(n) for n = 63671495 and 63671504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63671539) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10485 + ... + 15403.

It is an arithmetic number, because the mean of its divisors is an integer number (6177060).

Almost surely, 2^63671536 is an apocalyptic number.

It is an amenable number.

63671536 is a deficient number, since it is larger than the sum of its proper divisors (59869664).

63671536 is a wasteful number, since it uses less digits than its factorization.

63671536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5736 (or 5730 counting only the distinct ones).

The product of its digits is 68040, while the sum is 37.

The square root of 63671536 is about 7979.4445922006. Note that the first 3 decimals coincide. The cubic root of 63671536 is about 399.3145259844.

The spelling of 63671536 in words is "sixty-three million, six hundred seventy-one thousand, five hundred thirty-six".