5218690 has 8 divisors (see below), whose sum is σ = 9393660. Its totient is φ = 2087472.

The previous prime is 5218669. The next prime is 5218691. The reversal of 5218690 is 968125.

It can be written as a sum of positive squares in 2 ways, for example, as 4915089 + 303601 = 2217^2 + 551^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×5218690² = 54469450632200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5218691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260925 + ... + 260944.

Almost surely, 2^5218690 is an apocalyptic number.

5218690 is a deficient number, since it is larger than the sum of its proper divisors (4174970).

5218690 is a wasteful number, since it uses less digits than its factorization.

5218690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521876.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 5218690 is about 2284.4452280587. The cubic root of 5218690 is about 173.4551371021.

The spelling of 5218690 in words is "five million, two hundred eighteen thousand, six hundred ninety".