5617818 has 12 divisors (see below), whose sum is σ = 12171978. Its totient is φ = 1872600.

The previous prime is 5617817. The next prime is 5617831. The reversal of 5617818 is 8187165.

It can be written as a sum of positive squares in only one way, i.e., 5602689 + 15129 = 2367^2 + 123^2 .

It is a super-2 number, since 2×5617818² = 63119758162248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5617813) 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, 156033 + ... + 156068.

Almost surely, 2^5617818 is an apocalyptic number.

5617818 is an abundant number, since it is smaller than the sum of its proper divisors (6554160).

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

5617818 is a wasteful number, since it uses less digits than its factorization.

5617818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312109 (or 312106 counting only the distinct ones).

The product of its digits is 13440, while the sum is 36.

The square root of 5617818 is about 2370.1936629736. The cubic root of 5617818 is about 177.7689422982.

The spelling of 5617818 in words is "five million, six hundred seventeen thousand, eight hundred eighteen".