7090890 has 48 divisors (see below), whose sum is σ = 17550432. Its totient is φ = 1833376.

The previous prime is 7090873. The next prime is 7090901. The reversal of 7090890 is 980907.

It is a Curzon number.

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 23 ways as a sum of consecutive naturals, for example, 66217 + ... + 66323.

It is an arithmetic number, because the mean of its divisors is an integer number (365634).

Almost surely, 2^7090890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7090890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8775216).

7090890 is an abundant number, since it is smaller than the sum of its proper divisors (10459542).

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

7090890 is a wasteful number, since it uses less digits than its factorization.

7090890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 7090890 is about 2662.8725091525. The cubic root of 7090890 is about 192.1174953578.

The spelling of 7090890 in words is "seven million, ninety thousand, eight hundred ninety".