7085890 has 24 divisors (see below), whose sum is σ = 14838012. Its totient is φ = 2429280.

The previous prime is 7085873. The next prime is 7085933. The reversal of 7085890 is 985807.

It can be written as a sum of positive squares in 2 ways, for example, as 6245001 + 840889 = 2499^2 + 917^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6741 + ... + 7720.

Almost surely, 2^7085890 is an apocalyptic number.

7085890 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7085890 is an abundant number, since it is smaller than the sum of its proper divisors (7752122).

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

7085890 is a wasteful number, since it uses less digits than its factorization.

7085890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14482 (or 14475 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 7085890 is about 2661.9335078097. The cubic root of 7085890 is about 192.0723287969.

The spelling of 7085890 in words is "seven million, eighty-five thousand, eight hundred ninety".