7813089 has 6 divisors (see below), whose sum is σ = 11285586. Its totient is φ = 5208720.

The previous prime is 7813087. The next prime is 7813103. The reversal of 7813089 is 9803187.

It can be written as a sum of positive squares in only one way, i.e., 5198400 + 2614689 = 2280^2 + 1617^2 .

It is not a de Polignac number, because 7813089 - 2¹ = 7813087 is a prime.

It is a super-2 number, since 2×7813089² = 122088719443842, which contains 22 as substring.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (7813087) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 434052 + ... + 434069.

It is an arithmetic number, because the mean of its divisors is an integer number (1880931).

Almost surely, 2^7813089 is an apocalyptic number.

It is an amenable number.

7813089 is a deficient number, since it is larger than the sum of its proper divisors (3472497).

7813089 is a wasteful number, since it uses less digits than its factorization.

7813089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868127 (or 868124 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 7813089 is about 2795.1903334120. The cubic root of 7813089 is about 198.4301179266.

The spelling of 7813089 in words is "seven million, eight hundred thirteen thousand, eighty-nine".