7090813 has 2 divisors, whose sum is σ = 7090814. Its totient is φ = 7090812.

The previous prime is 7090801. The next prime is 7090859. The reversal of 7090813 is 3180907.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6959044 + 131769 = 2638^2 + 363^2 .

It is an emirp because it is prime and its reverse (3180907) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7090813 - 2²¹ = 4993661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7090873) 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 as a sum of consecutive naturals, namely, 3545406 + 3545407.

It is an arithmetic number, because the mean of its divisors is an integer number (3545407).

Almost surely, 2^7090813 is an apocalyptic number.

It is an amenable number.

7090813 is a deficient number, since it is larger than the sum of its proper divisors (1).

7090813 is an equidigital number, since it uses as much as digits as its factorization.

7090813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 7090813 is about 2662.8580510422. The cubic root of 7090813 is about 192.1167999537.

The spelling of 7090813 in words is "seven million, ninety thousand, eight hundred thirteen".