63487040 has 28 divisors (see below), whose sum is σ = 151179276. Its totient is φ = 25394688.

The previous prime is 63487001. The next prime is 63487069. The reversal of 63487040 is 4078436.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 17572864 + 45914176 = 4192^2 + 6776^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 63486988 and 63487006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98879 + ... + 99518.

Almost surely, 2^63487040 is an apocalyptic number.

It is an amenable number.

63487040 is an abundant number, since it is smaller than the sum of its proper divisors (87692236).

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

63487040 is a wasteful number, since it uses less digits than its factorization.

63487040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198414 (or 198404 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 63487040 is about 7967.8755010354. The cubic root of 63487040 is about 398.9284654307.

The spelling of 63487040 in words is "sixty-three million, four hundred eighty-seven thousand, forty".