9919952 has 30 divisors (see below), whose sum is σ = 22359618. Its totient is φ = 4251072.

The previous prime is 9919939. The next prime is 9919963. The reversal of 9919952 is 2599199.

It can be written as a sum of positive squares in only one way, i.e., 5271616 + 4648336 = 2296^2 + 2156^2 .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 5543 + ... + 7110.

Almost surely, 2^9919952 is an apocalyptic number.

It is an amenable number.

9919952 is an abundant number, since it is smaller than the sum of its proper divisors (12439666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9919952 is a wasteful number, since it uses less digits than its factorization.

9919952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12675 (or 12662 counting only the distinct ones).

The product of its digits is 65610, while the sum is 44.

The square root of 9919952 is about 3149.5955295879. The cubic root of 9919952 is about 214.8670676369.

The spelling of 9919952 in words is "nine million, nine hundred nineteen thousand, nine hundred fifty-two".