7921322 has 8 divisors (see below), whose sum is σ = 11905572. Its totient is φ = 3952800.

The previous prime is 7921313. The next prime is 7921351. The reversal of 7921322 is 2231297.

It can be written as a sum of positive squares in 2 ways, for example, as 6507601 + 1413721 = 2551^2 + 1189^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 7921291 and 7921300.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2579 + ... + 4742.

Almost surely, 2^7921322 is an apocalyptic number.

7921322 is a deficient number, since it is larger than the sum of its proper divisors (3984250).

7921322 is a wasteful number, since it uses less digits than its factorization.

7921322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7864.

The product of its digits is 1512, while the sum is 26.

The square root of 7921322 is about 2814.4843222161. The cubic root of 7921322 is about 199.3421887941.

The spelling of 7921322 in words is "seven million, nine hundred twenty-one thousand, three hundred twenty-two".