7985849 has 4 divisors (see below), whose sum is σ = 8004480. Its totient is φ = 7967220.

The previous prime is 7985843. The next prime is 7985851. The reversal of 7985849 is 9485897.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7985849 - 2¹⁶ = 7920313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 7985797 and 7985806.

It is not an unprimeable number, because it can be changed into a prime (7985843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8657 + ... + 9534.

It is an arithmetic number, because the mean of its divisors is an integer number (2001120).

Almost surely, 2^7985849 is an apocalyptic number.

It is an amenable number.

7985849 is a deficient number, since it is larger than the sum of its proper divisors (18631).

7985849 is a wasteful number, since it uses less digits than its factorization.

7985849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18630.

The product of its digits is 725760, while the sum is 50.

The square root of 7985849 is about 2825.9244505117. The cubic root of 7985849 is about 199.8820054001.

The spelling of 7985849 in words is "seven million, nine hundred eighty-five thousand, eight hundred forty-nine".