7947322 has 4 divisors (see below), whose sum is σ = 11920986. Its totient is φ = 3973660.

The previous prime is 7947293. The next prime is 7947323. The reversal of 7947322 is 2237497.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2237497 = 19 ⋅117763.

It can be written as a sum of positive squares in only one way, i.e., 7612081 + 335241 = 2759^2 + 579^2 .

It is a d-powerful number, because it can be written as 7⁷ + 9⁴ + 4¹¹ + 7⁷ + 3⁷ + 2⁵ + 2²¹ .

It is not an unprimeable number, because it can be changed into a prime (7947323) by changing a digit.

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 as a sum of consecutive naturals, namely, 1986829 + ... + 1986832.

Almost surely, 2^7947322 is an apocalyptic number.

7947322 is a deficient number, since it is larger than the sum of its proper divisors (3973664).

7947322 is a wasteful number, since it uses less digits than its factorization.

7947322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3973663.

The product of its digits is 21168, while the sum is 34.

The square root of 7947322 is about 2819.0995016139. The cubic root of 7947322 is about 199.5600495945.

The spelling of 7947322 in words is "seven million, nine hundred forty-seven thousand, three hundred twenty-two".