7993444 has 12 divisors (see below), whose sum is σ = 14471100. Its totient is φ = 3858848.

The previous prime is 7993439. The next prime is 7993459. The reversal of 7993444 is 4443997.

It can be written as a sum of positive squares in 2 ways, for example, as 5062500 + 2930944 = 2250^2 + 1712^2 .

It is a super-2 number, since 2×7993444² = 127790293962272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 7993397 and 7993406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34339 + ... + 34570.

It is an arithmetic number, because the mean of its divisors is an integer number (1205925).

Almost surely, 2^7993444 is an apocalyptic number.

It is an amenable number.

7993444 is a deficient number, since it is larger than the sum of its proper divisors (6477656).

7993444 is a wasteful number, since it uses less digits than its factorization.

7993444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68942 (or 68940 counting only the distinct ones).

The product of its digits is 108864, while the sum is 40.

The square root of 7993444 is about 2827.2679391950. The cubic root of 7993444 is about 199.9453517359.

The spelling of 7993444 in words is "seven million, nine hundred ninety-three thousand, four hundred forty-four".