99763988 has 36 divisors (see below), whose sum is σ = 184243836. Its totient is φ = 47232000.

The previous prime is 99763981. The next prime is 99763997. The reversal of 99763988 is 88936799.

It can be written as a sum of positive squares in 6 ways, for example, as 3844 + 99760144 = 62^2 + 9988^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99763981) 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 11 ways as a sum of consecutive naturals, for example, 248588 + ... + 248988.

Almost surely, 2^99763988 is an apocalyptic number.

It is an amenable number.

99763988 is a deficient number, since it is larger than the sum of its proper divisors (84479848).

99763988 is a wasteful number, since it uses less digits than its factorization.

99763988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524 (or 481 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 59.

The square root of 99763988 is about 9988.1924290634. The cubic root of 99763988 is about 463.7934388247.

The spelling of 99763988 in words is "ninety-nine million, seven hundred sixty-three thousand, nine hundred eighty-eight".