5709218 has 4 divisors (see below), whose sum is σ = 8563830. Its totient is φ = 2854608.

The previous prime is 5709217. The next prime is 5709269. The reversal of 5709218 is 8129075.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 5697769 + 11449 = 2387^2 + 107^2 .

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5709217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1427303 + ... + 1427306.

Almost surely, 2^5709218 is an apocalyptic number.

5709218 is a deficient number, since it is larger than the sum of its proper divisors (2854612).

5709218 is a wasteful number, since it uses less digits than its factorization.

5709218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2854611.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 5709218 is about 2389.3969950596. The cubic root of 5709218 is about 178.7278408314.

The spelling of 5709218 in words is "five million, seven hundred nine thousand, two hundred eighteen".