9961552 has 20 divisors (see below), whose sum is σ = 19750720. Its totient is φ = 4864608.

The previous prime is 9961543. The next prime is 9961573. The reversal of 9961552 is 2551699.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6552 + ... + 7927.

It is an arithmetic number, because the mean of its divisors is an integer number (987536).

Almost surely, 2^9961552 is an apocalyptic number.

It is an amenable number.

9961552 is a deficient number, since it is larger than the sum of its proper divisors (9789168).

9961552 is a wasteful number, since it uses less digits than its factorization.

9961552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14530 (or 14524 counting only the distinct ones).

The product of its digits is 24300, while the sum is 37.

The square root of 9961552 is about 3156.1926430432. The cubic root of 9961552 is about 215.1670020299.

The spelling of 9961552 in words is "nine million, nine hundred sixty-one thousand, five hundred fifty-two".