63398699 has 12 divisors (see below), whose sum is σ = 79423344. Its totient is φ = 50161104.

The previous prime is 63398659. The next prime is 63398719. The reversal of 63398699 is 99689336.

It is a happy number.

It is not a de Polignac number, because 63398699 - 2⁸ = 63398443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63398699.

It is not an unprimeable number, because it can be changed into a prime (63398639) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49127 + ... + 50400.

It is an arithmetic number, because the mean of its divisors is an integer number (6618612).

Almost surely, 2^63398699 is an apocalyptic number.

63398699 is a deficient number, since it is larger than the sum of its proper divisors (16024645).

63398699 is a wasteful number, since it uses less digits than its factorization.

63398699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99554 (or 99547 counting only the distinct ones).

The product of its digits is 1889568, while the sum is 53.

The square root of 63398699 is about 7962.3299981852. The cubic root of 63398699 is about 398.7433457680.

The spelling of 63398699 in words is "sixty-three million, three hundred ninety-eight thousand, six hundred ninety-nine".