63782516 has 18 divisors (see below), whose sum is σ = 129843378. Its totient is φ = 27335280.

The previous prime is 63782507. The next prime is 63782539. The reversal of 63782516 is 61528736.

It can be written as a sum of positive squares in only one way, i.e., 55056400 + 8726116 = 7420^2 + 2954^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63782516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 162515 + ... + 162906.

It is an arithmetic number, because the mean of its divisors is an integer number (7213521).

Almost surely, 2^63782516 is an apocalyptic number.

It is an amenable number.

63782516 is an abundant number, since it is smaller than the sum of its proper divisors (66060862).

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

63782516 is a wasteful number, since it uses less digits than its factorization.

63782516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325439 (or 325430 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 63782516 is about 7986.3956826594. The cubic root of 63782516 is about 399.5463941321.

The spelling of 63782516 in words is "sixty-three million, seven hundred eighty-two thousand, five hundred sixteen".