921652 has 24 divisors (see below), whose sum is σ = 1732640. Its totient is φ = 427680.

The previous prime is 921647. The next prime is 921667. The reversal of 921652 is 256129.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

921652 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5002 + ... + 5182.

2⁹²¹⁶⁵² is an apocalyptic number.

It is an amenable number.

921652 is a deficient number, since it is larger than the sum of its proper divisors (810988).

921652 is a wasteful number, since it uses less digits than its factorization.

921652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 269 counting only the distinct ones).

The product of its digits is 1080, while the sum is 25.

The square root of 921652 is about 960.0270829513. The cubic root of 921652 is about 97.3170621870.

The spelling of 921652 in words is "nine hundred twenty-one thousand, six hundred fifty-two".