7318089 has 6 divisors (see below), whose sum is σ = 10570586. Its totient is φ = 4878720.

The previous prime is 7318067. The next prime is 7318093. The reversal of 7318089 is 9808137.

It can be written as a sum of positive squares in only one way, i.e., 6125625 + 1192464 = 2475^2 + 1092^2 .

It is not a de Polignac number, because 7318089 - 2⁸ = 7317833 is a prime.

It is a super-2 number, since 2×7318089² = 107108853223842, which contains 22 as substring.

It is a Duffinian number.

7318089 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7318009) 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 5 ways as a sum of consecutive naturals, for example, 406552 + ... + 406569.

Almost surely, 2^7318089 is an apocalyptic number.

It is an amenable number.

7318089 is a deficient number, since it is larger than the sum of its proper divisors (3252497).

7318089 is a wasteful number, since it uses less digits than its factorization.

7318089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813127 (or 813124 counting only the distinct ones).

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

The square root of 7318089 is about 2705.1966656789. The cubic root of 7318089 is about 194.1478396239.

It can be divided in two parts, 7 and 318089, that added together give a square (318096 = 564²).

The spelling of 7318089 in words is "seven million, three hundred eighteen thousand, eighty-nine".