63478315 has 16 divisors (see below), whose sum is σ = 77313888. Its totient is φ = 50029056.

The previous prime is 63478301. The next prime is 63478319. The reversal of 63478315 is 51387436.

63478315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 63478315 - 2²¹ = 61381163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63478319) 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 15 ways as a sum of consecutive naturals, for example, 159697 + ... + 160093.

It is an arithmetic number, because the mean of its divisors is an integer number (4832118).

Almost surely, 2^63478315 is an apocalyptic number.

63478315 is a deficient number, since it is larger than the sum of its proper divisors (13835573).

63478315 is a wasteful number, since it uses less digits than its factorization.

63478315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798.

The product of its digits is 60480, while the sum is 37.

The square root of 63478315 is about 7967.3279711582. The cubic root of 63478315 is about 398.9101897305.

Subtracting from 63478315 its sum of digits (37), we obtain a triangular number (63478278 = T₁₁₂₆₇).

The spelling of 63478315 in words is "sixty-three million, four hundred seventy-eight thousand, three hundred fifteen".