7485839 has 4 divisors (see below), whose sum is σ = 7493160. Its totient is φ = 7478520.

The previous prime is 7485823. The next prime is 7485847. The reversal of 7485839 is 9385847.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9385847 = 223 ⋅42089.

It is a cyclic number.

It is not a de Polignac number, because 7485839 - 2⁴ = 7485823 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7485839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7485809) 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 3 ways as a sum of consecutive naturals, for example, 1817 + ... + 4274.

It is an arithmetic number, because the mean of its divisors is an integer number (1873290).

Almost surely, 2^7485839 is an apocalyptic number.

7485839 is a deficient number, since it is larger than the sum of its proper divisors (7321).

7485839 is a wasteful number, since it uses less digits than its factorization.

7485839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7320.

The product of its digits is 241920, while the sum is 44.

The square root of 7485839 is about 2736.0261329161. The cubic root of 7485839 is about 195.6201079050.

The spelling of 7485839 in words is "seven million, four hundred eighty-five thousand, eight hundred thirty-nine".