63906842 has 16 divisors (see below), whose sum is σ = 106842240. Its totient is φ = 28490688.

The previous prime is 63906803. The next prime is 63906847. The reversal of 63906842 is 24860936.

63906842 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 (38).

It is a junction number, because it is equal to n+sod(n) for n = 63906796 and 63906805.

It is not an unprimeable number, because it can be changed into a prime (63906847) 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 7 ways as a sum of consecutive naturals, for example, 48818 + ... + 50109.

It is an arithmetic number, because the mean of its divisors is an integer number (6677640).

Almost surely, 2^63906842 is an apocalyptic number.

63906842 is a deficient number, since it is larger than the sum of its proper divisors (42935398).

63906842 is a wasteful number, since it uses less digits than its factorization.

63906842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98965.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 63906842 is about 7994.1755047034. The cubic root of 63906842 is about 399.8058265903.

The spelling of 63906842 in words is "sixty-three million, nine hundred six thousand, eight hundred forty-two".