63782920 has 16 divisors (see below), whose sum is σ = 143511660. Its totient is φ = 25513152.

The previous prime is 63782911. The next prime is 63782923. The reversal of 63782920 is 2928736.

It can be written as a sum of positive squares in 2 ways, for example, as 63776196 + 6724 = 7986^2 + 82^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63782920.

It is not an unprimeable number, because it can be changed into a prime (63782923) 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, 797247 + ... + 797326.

Almost surely, 2^63782920 is an apocalyptic number.

It is an amenable number.

63782920 is an abundant number, since it is smaller than the sum of its proper divisors (79728740).

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

63782920 is a wasteful number, since it uses less digits than its factorization.

63782920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594584 (or 1594580 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 63782920 is about 7986.4209756311. The cubic root of 63782920 is about 399.5472377091.

The spelling of 63782920 in words is "sixty-three million, seven hundred eighty-two thousand, nine hundred twenty".