63899942 has 16 divisors (see below), whose sum is σ = 97397520. Its totient is φ = 31438368.

The previous prime is 63899921. The next prime is 63899947. The reversal of 63899942 is 24999836.

63899942 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 (63899947) 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 7 ways as a sum of consecutive naturals, for example, 33293 + ... + 35159.

It is an arithmetic number, because the mean of its divisors is an integer number (6087345).

Almost surely, 2^63899942 is an apocalyptic number.

63899942 is a deficient number, since it is larger than the sum of its proper divisors (33497578).

63899942 is a wasteful number, since it uses less digits than its factorization.

63899942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135.

The product of its digits is 839808, while the sum is 50.

The square root of 63899942 is about 7993.7439288484. The cubic root of 63899942 is about 399.7914371060.

The spelling of 63899942 in words is "sixty-three million, eight hundred ninety-nine thousand, nine hundred forty-two".