63428776 has 32 divisors (see below), whose sum is σ = 122983200. Its totient is φ = 30651840.

The previous prime is 63428749. The next prime is 63428777. The reversal of 63428776 is 67782436.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (63428777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27691 + ... + 29893.

It is an arithmetic number, because the mean of its divisors is an integer number (3843225).

Almost surely, 2^63428776 is an apocalyptic number.

It is an amenable number.

63428776 is a deficient number, since it is larger than the sum of its proper divisors (59554424).

63428776 is a wasteful number, since it uses less digits than its factorization.

63428776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2329 (or 2325 counting only the distinct ones).

The product of its digits is 338688, while the sum is 43.

The square root of 63428776 is about 7964.2184801774. The cubic root of 63428776 is about 398.8063917914.

The spelling of 63428776 in words is "sixty-three million, four hundred twenty-eight thousand, seven hundred seventy-six".