63669404 has 12 divisors (see below), whose sum is σ = 111477744. Its totient is φ = 31818624.

The previous prime is 63669401. The next prime is 63669427. The reversal of 63669404 is 40496636.

It is a happy number.

63669404 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63669401) 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 3 ways as a sum of consecutive naturals, for example, 11852 + ... + 16364.

It is an arithmetic number, because the mean of its divisors is an integer number (9289812).

Almost surely, 2^63669404 is an apocalyptic number.

It is an amenable number.

63669404 is a deficient number, since it is larger than the sum of its proper divisors (47808340).

63669404 is a wasteful number, since it uses less digits than its factorization.

63669404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8044 (or 8042 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 63669404 is about 7979.3109978243. The cubic root of 63669404 is about 399.3100690056.

The spelling of 63669404 in words is "sixty-three million, six hundred sixty-nine thousand, four hundred four".