7985439 has 64 divisors (see below), whose sum is σ = 15482880. Its totient is φ = 3944160.

The previous prime is 7985437. The next prime is 7985489. The reversal of 7985439 is 9345897.

It is not a de Polignac number, because 7985439 - 2¹ = 7985437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7985394 and 7985403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7985431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 47734 + ... + 47900.

It is an arithmetic number, because the mean of its divisors is an integer number (241920).

Almost surely, 2^7985439 is an apocalyptic number.

7985439 is a deficient number, since it is larger than the sum of its proper divisors (7497441).

7985439 is a wasteful number, since it uses less digits than its factorization.

7985439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 211 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 7985439 is about 2825.8519069477. The cubic root of 7985439 is about 199.8785846398.

The spelling of 7985439 in words is "seven million, nine hundred eighty-five thousand, four hundred thirty-nine".