63078906 has 64 divisors (see below), whose sum is σ = 142248960. Its totient is φ = 18485760.

The previous prime is 63078901. The next prime is 63078907. The reversal of 63078906 is 60987036.

63078906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63078901) 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 31 ways as a sum of consecutive naturals, for example, 377635 + ... + 377801.

It is an arithmetic number, because the mean of its divisors is an integer number (2222640).

Almost surely, 2^63078906 is an apocalyptic number.

63078906 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 63078906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71124480).

63078906 is an abundant number, since it is smaller than the sum of its proper divisors (79170054).

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

63078906 is a wasteful number, since it uses less digits than its factorization.

63078906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 63078906 is about 7942.2229885593. Note that the first 3 decimals coincide. The cubic root of 63078906 is about 398.0717739635.

The spelling of 63078906 in words is "sixty-three million, seventy-eight thousand, nine hundred six".