63806428 has 18 divisors (see below), whose sum is σ = 129892056. Its totient is φ = 27345528.

The previous prime is 63806417. The next prime is 63806429. The reversal of 63806428 is 82460836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63806429) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 162576 + ... + 162967.

Almost surely, 2^63806428 is an apocalyptic number.

It is an amenable number.

63806428 is an abundant number, since it is smaller than the sum of its proper divisors (66085628).

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

63806428 is a wasteful number, since it uses less digits than its factorization.

63806428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325561 (or 325552 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 37.

The square root of 63806428 is about 7987.8925881612. The cubic root of 63806428 is about 399.5963177386.

The spelling of 63806428 in words is "sixty-three million, eight hundred six thousand, four hundred twenty-eight".