9721652 has 12 divisors (see below), whose sum is σ = 17037216. Its totient is φ = 4853880.

The previous prime is 9721643. The next prime is 9721667. The reversal of 9721652 is 2561279.

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 in 3 ways as a sum of consecutive naturals, for example, 2633 + ... + 5135.

It is an arithmetic number, because the mean of its divisors is an integer number (1419768).

Almost surely, 2^9721652 is an apocalyptic number.

It is an amenable number.

9721652 is a deficient number, since it is larger than the sum of its proper divisors (7315564).

9721652 is a wasteful number, since it uses less digits than its factorization.

9721652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3478 (or 3476 counting only the distinct ones).

The product of its digits is 7560, while the sum is 32.

The square root of 9721652 is about 3117.9563819913. The cubic root of 9721652 is about 213.4256880943.

The spelling of 9721652 in words is "nine million, seven hundred twenty-one thousand, six hundred fifty-two".