63428904 has 192 divisors, whose sum is σ = 227111040. Its totient is φ = 15482880.

The previous prime is 63428903. The next prime is 63428923. The reversal of 63428904 is 40982436.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (63428903) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 93912 + ... + 94584.

It is an arithmetic number, because the mean of its divisors is an integer number (1182870).

Almost surely, 2^63428904 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 63428904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113555520).

63428904 is an abundant number, since it is smaller than the sum of its proper divisors (163682136).

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

63428904 is a wasteful number, since it uses less digits than its factorization.

63428904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720 (or 713 counting only the distinct ones).

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

The square root of 63428904 is about 7964.2265161157. The cubic root of 63428904 is about 398.8066600565.

The spelling of 63428904 in words is "sixty-three million, four hundred twenty-eight thousand, nine hundred four".