63842904 has 128 divisors (see below), whose sum is σ = 185976000. Its totient is φ = 20528640.

The previous prime is 63842887. The next prime is 63842921. The reversal of 63842904 is 40924836.

It is a happy number.

63842904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (63842887) and next prime (63842921).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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, 717292 + ... + 717380.

Almost surely, 2^63842904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63842904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (92988000).

63842904 is an abundant number, since it is smaller than the sum of its proper divisors (122133096).

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

63842904 is an equidigital number, since it uses as much as digits as its factorization.

63842904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 63842904 is about 7990.1754674100. The cubic root of 63842904 is about 399.6724485149.

It can be divided in two parts, 63842 and 904, that added together give a palindrome (64746).

The spelling of 63842904 in words is "sixty-three million, eight hundred forty-two thousand, nine hundred four".