99663946 has 16 divisors (see below), whose sum is σ = 154586880. Its totient is φ = 48140640.

The previous prime is 99663929. The next prime is 99663953. The reversal of 99663946 is 64936699.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 99663893 and 99663902.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49165 + ... + 51151.

It is an arithmetic number, because the mean of its divisors is an integer number (9661680).

Almost surely, 2^99663946 is an apocalyptic number.

99663946 is a deficient number, since it is larger than the sum of its proper divisors (54922934).

99663946 is a wasteful number, since it uses less digits than its factorization.

99663946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829.

The product of its digits is 1889568, while the sum is 52.

The square root of 99663946 is about 9983.1831596941. The cubic root of 99663946 is about 463.6383583454.

The spelling of 99663946 in words is "ninety-nine million, six hundred sixty-three thousand, nine hundred forty-six".