7421085 has 32 divisors (see below), whose sum is σ = 15079680. Its totient is φ = 3392064.

The previous prime is 7421083. The next prime is 7421093. The reversal of 7421085 is 5801247.

It is not a de Polignac number, because 7421085 - 2¹ = 7421083 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

7421085 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7421083) 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 31 ways as a sum of consecutive naturals, for example, 2982 + ... + 4871.

It is an arithmetic number, because the mean of its divisors is an integer number (471240).

Almost surely, 2^7421085 is an apocalyptic number.

It is an amenable number.

7421085 is an abundant number, since it is smaller than the sum of its proper divisors (7658595).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7421085 is a wasteful number, since it uses less digits than its factorization.

7421085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7874 (or 7868 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 7421085 is about 2724.1668451106. The cubic root of 7421085 is about 195.0544226795.

The spelling of 7421085 in words is "seven million, four hundred twenty-one thousand, eighty-five".