9980888 has 8 divisors (see below), whose sum is σ = 18714180. Its totient is φ = 4990440.

The previous prime is 9980869. The next prime is 9980899. The reversal of 9980888 is 8880899.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

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 as a sum of consecutive naturals, namely, 623798 + ... + 623813.

Almost surely, 2^9980888 is an apocalyptic number.

It is an amenable number.

9980888 is a deficient number, since it is larger than the sum of its proper divisors (8733292).

9980888 is a wasteful number, since it uses less digits than its factorization.

9980888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1247617 (or 1247613 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 50.

The square root of 9980888 is about 3159.2543424042. The cubic root of 9980888 is about 215.3061296190.

The spelling of 9980888 in words is "nine million, nine hundred eighty thousand, eight hundred eighty-eight".