921343 has 4 divisors (see below), whose sum is σ = 925408. Its totient is φ = 917280.

The previous prime is 921331. The next prime is 921353. The reversal of 921343 is 343129.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343129 = 41 ⋅8369.

It is a cyclic number.

It is not a de Polignac number, because 921343 - 2¹³ = 913151 is a prime.

It is a Duffinian number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1671 + ... + 2152.

It is an arithmetic number, because the mean of its divisors is an integer number (231352).

2⁹²¹³⁴³ is an apocalyptic number.

921343 is a deficient number, since it is larger than the sum of its proper divisors (4065).

921343 is a wasteful number, since it uses less digits than its factorization.

921343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4064.

The product of its digits is 648, while the sum is 22.

The square root of 921343 is about 959.8661365003. The cubic root of 921343 is about 97.3061852206.

The spelling of 921343 in words is "nine hundred twenty-one thousand, three hundred forty-three".