63698428 has 12 divisors (see below), whose sum is σ = 115068352. Its totient is φ = 30821760.

The previous prime is 63698419. The next prime is 63698429. The reversal of 63698428 is 82489636.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63698429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256725 + ... + 256972.

Almost surely, 2^63698428 is an apocalyptic number.

It is an amenable number.

63698428 is a deficient number, since it is larger than the sum of its proper divisors (51369924).

63698428 is a wasteful number, since it uses less digits than its factorization.

63698428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 513732 (or 513730 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 63698428 is about 7981.1294940002. The cubic root of 63698428 is about 399.3707355848.

The spelling of 63698428 in words is "sixty-three million, six hundred ninety-eight thousand, four hundred twenty-eight".