63899122 has 32 divisors (see below), whose sum is σ = 116997120. Its totient is φ = 25583040.

The previous prime is 63899053. The next prime is 63899131. The reversal of 63899122 is 22199836.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10048 + ... + 15124.

It is an arithmetic number, because the mean of its divisors is an integer number (3656160).

Almost surely, 2^63899122 is an apocalyptic number.

63899122 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

63899122 is a deficient number, since it is larger than the sum of its proper divisors (53097998).

63899122 is a wasteful number, since it uses less digits than its factorization.

63899122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5146.

The product of its digits is 46656, while the sum is 40.

The square root of 63899122 is about 7993.6926385745. The cubic root of 63899122 is about 399.7897269825.

The spelling of 63899122 in words is "sixty-three million, eight hundred ninety-nine thousand, one hundred twenty-two".