7983445 has 8 divisors (see below), whose sum is σ = 9630936. Its totient is φ = 6352896.

The previous prime is 7983433. The next prime is 7983449. The reversal of 7983445 is 5443897.

It can be written as a sum of positive squares in 4 ways, for example, as 806404 + 7177041 = 898^2 + 2679^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 7983445 - 2¹¹ = 7981397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7983398 and 7983407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7983449) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3172 + ... + 5101.

It is an arithmetic number, because the mean of its divisors is an integer number (1203867).

Almost surely, 2^7983445 is an apocalyptic number.

It is an amenable number.

7983445 is a deficient number, since it is larger than the sum of its proper divisors (1647491).

7983445 is a wasteful number, since it uses less digits than its factorization.

7983445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8471.

The product of its digits is 120960, while the sum is 40.

The square root of 7983445 is about 2825.4990709607. The cubic root of 7983445 is about 199.8619463946.

The spelling of 7983445 in words is "seven million, nine hundred eighty-three thousand, four hundred forty-five".