7984442 has 4 divisors (see below), whose sum is σ = 11976666. Its totient is φ = 3992220.

The previous prime is 7984439. The next prime is 7984513. The reversal of 7984442 is 2444897.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 4748041 + 3236401 = 2179^2 + 1799^2 .

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 7984396 and 7984405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1996109 + ... + 1996112.

Almost surely, 2^7984442 is an apocalyptic number.

7984442 is a deficient number, since it is larger than the sum of its proper divisors (3992224).

7984442 is a wasteful number, since it uses less digits than its factorization.

7984442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3992223.

The product of its digits is 64512, while the sum is 38.

The square root of 7984442 is about 2825.6754944615. The cubic root of 7984442 is about 199.8702658635.

The spelling of 7984442 in words is "seven million, nine hundred eighty-four thousand, four hundred forty-two".