921322 has 8 divisors (see below), whose sum is σ = 1395972. Its totient is φ = 456000.

The previous prime is 921293. The next prime is 921331. The reversal of 921322 is 223129.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 881721 + 39601 = 939^2 + 199^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 921322.

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, 2079 + ... + 2482.

2⁹²¹³²² is an apocalyptic number.

921322 is a deficient number, since it is larger than the sum of its proper divisors (474650).

921322 is a wasteful number, since it uses less digits than its factorization.

921322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4664.

The product of its digits is 216, while the sum is 19.

The square root of 921322 is about 959.8551974126. The cubic root of 921322 is about 97.3054459211.

The spelling of 921322 in words is "nine hundred twenty-one thousand, three hundred twenty-two".