921323 has 8 divisors (see below), whose sum is σ = 1001616. Its totient is φ = 842400.

The previous prime is 921293. The next prime is 921331. The reversal of 921323 is 323129.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 921323 - 2⁶ = 921259 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 921295 and 921304.

It is not an unprimeable number, because it can be changed into a prime (921353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1433 + ... + 1973.

It is an arithmetic number, because the mean of its divisors is an integer number (125202).

2⁹²¹³²³ is an apocalyptic number.

921323 is a deficient number, since it is larger than the sum of its proper divisors (80293).

921323 is a wasteful number, since it uses less digits than its factorization.

921323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685.

The product of its digits is 324, while the sum is 20.

The square root of 921323 is about 959.8557183244. The cubic root of 921323 is about 97.3054811261.

It can be divided in two parts, 92132 and 3, that multiplied together give a triangular number (276396 = T₇₄₃).

The spelling of 921323 in words is "nine hundred twenty-one thousand, three hundred twenty-three".