63671560 has 32 divisors (see below), whose sum is σ = 143703000. Its totient is φ = 25390080.

The previous prime is 63671539. The next prime is 63671563. The reversal of 63671560 is 6517636.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52794756 + 10876804 = 7266^2 + 3298^2 .

It is not an unprimeable number, because it can be changed into a prime (63671563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11680 + ... + 16240.

Almost surely, 2^63671560 is an apocalyptic number.

It is an amenable number.

63671560 is an abundant number, since it is smaller than the sum of its proper divisors (80031440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63671560 is a wasteful number, since it uses less digits than its factorization.

63671560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4921 (or 4917 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 63671560 is about 7979.4460960646. The cubic root of 63671560 is about 399.3145761563.

The spelling of 63671560 in words is "sixty-three million, six hundred seventy-one thousand, five hundred sixty".