63378822 has 32 divisors (see below), whose sum is σ = 144541152. Its totient is φ = 18353664.

The previous prime is 63378797. The next prime is 63378827. The reversal of 63378822 is 22887336.

It is a happy number.

63378822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63378827) 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, 22573 + ... + 25224.

It is an arithmetic number, because the mean of its divisors is an integer number (4516911).

Almost surely, 2^63378822 is an apocalyptic number.

63378822 is an abundant number, since it is smaller than the sum of its proper divisors (81162330).

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

63378822 is a wasteful number, since it uses less digits than its factorization.

63378822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47832.

The product of its digits is 96768, while the sum is 39.

The square root of 63378822 is about 7961.0817104210. The cubic root of 63378822 is about 398.7016695714.

It can be divided in two parts, 63 and 378822, that added together give a triangular number (378885 = T₈₇₀).

The spelling of 63378822 in words is "sixty-three million, three hundred seventy-eight thousand, eight hundred twenty-two".