63472815 has 96 divisors (see below), whose sum is σ = 138378240. Its totient is φ = 27247104.

The previous prime is 63472813. The next prime is 63472819. The reversal of 63472815 is 51827436.

63472815 is a `hidden beast` number, since 634 + 7 + 2 + 8 + 15 = 666.

63472815 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63472815 - 2¹ = 63472813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63472815.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63472811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 144366 + ... + 144804.

It is an arithmetic number, because the mean of its divisors is an integer number (1441440).

Almost surely, 2^63472815 is an apocalyptic number.

63472815 is an abundant number, since it is smaller than the sum of its proper divisors (74905425).

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

63472815 is a wasteful number, since it uses less digits than its factorization.

63472815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 471 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 63472815 is about 7966.9828040482. The cubic root of 63472815 is about 398.8986683713.

It can be divided in two parts, 63 and 472815, that added together give a triangular number (472878 = T₉₇₂).

The spelling of 63472815 in words is "sixty-three million, four hundred seventy-two thousand, eight hundred fifteen".