5609818 has 12 divisors (see below), whose sum is σ = 8732970. Its totient is φ = 2699480.

The previous prime is 5609809. The next prime is 5609827. The reversal of 5609818 is 8189065.

It is an interprime number because it is at equal distance from previous prime (5609809) and next prime (5609827).

It can be written as a sum of positive squares in only one way, i.e., 4739329 + 870489 = 2177^2 + 933^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17883 + ... + 18193.

Almost surely, 2^5609818 is an apocalyptic number.

5609818 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

5609818 is a deficient number, since it is larger than the sum of its proper divisors (3123152).

5609818 is an equidigital number, since it uses as much as digits as its factorization.

5609818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653 (or 342 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 5609818 is about 2368.5054359237. The cubic root of 5609818 is about 177.6845188239.

The spelling of 5609818 in words is "five million, six hundred nine thousand, eight hundred eighteen".