9897952 has 12 divisors (see below), whose sum is σ = 19486656. Its totient is φ = 4948960.

The previous prime is 9897941. The next prime is 9897971. The reversal of 9897952 is 2597989.

It is a junction number, because it is equal to n+sod(n) for n = 9897896 and 9897905.

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, 154624 + ... + 154687.

It is an arithmetic number, because the mean of its divisors is an integer number (1623888).

Almost surely, 2^9897952 is an apocalyptic number.

It is an amenable number.

9897952 is a deficient number, since it is larger than the sum of its proper divisors (9588704).

9897952 is a wasteful number, since it uses less digits than its factorization.

9897952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309321 (or 309313 counting only the distinct ones).

The product of its digits is 408240, while the sum is 49.

The square root of 9897952 is about 3146.1010791136. The cubic root of 9897952 is about 214.7081093982.

The spelling of 9897952 in words is "nine million, eight hundred ninety-seven thousand, nine hundred fifty-two".