63669650 has 24 divisors (see below), whose sum is σ = 129192624. Its totient is φ = 23152400.

The previous prime is 63669649. The next prime is 63669653. The reversal of 63669650 is 5696636.

63669650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×63669650² = 8107648662245000, which contains 22 as substring.

It is a Curzon number.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 63669598 and 63669607.

It is not an unprimeable number, because it can be changed into a prime (63669653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57332 + ... + 58431.

It is an arithmetic number, because the mean of its divisors is an integer number (5383026).

Almost surely, 2^63669650 is an apocalyptic number.

63669650 is an abundant number, since it is smaller than the sum of its proper divisors (65522974).

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

63669650 is a wasteful number, since it uses less digits than its factorization.

63669650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115786 (or 115781 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 41.

The square root of 63669650 is about 7979.3264126742. The cubic root of 63669650 is about 399.3105832774.

The spelling of 63669650 in words is "sixty-three million, six hundred sixty-nine thousand, six hundred fifty".