63428406 has 16 divisors (see below), whose sum is σ = 127710000. Its totient is φ = 21000608.

The previous prime is 63428399. The next prime is 63428447. The reversal of 63428406 is 60482436.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34581 + ... + 36368.

It is an arithmetic number, because the mean of its divisors is an integer number (7981875).

Almost surely, 2^63428406 is an apocalyptic number.

63428406 is an abundant number, since it is smaller than the sum of its proper divisors (64281594).

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

63428406 is a wasteful number, since it uses less digits than its factorization.

63428406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71103.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 63428406 is about 7964.1952512479. The cubic root of 63428406 is about 398.8056163355.

The spelling of 63428406 in words is "sixty-three million, four hundred twenty-eight thousand, four hundred six".