4997218 has 8 divisors (see below), whose sum is σ = 7936812. Its totient is φ = 2351616.

The previous prime is 4997191. The next prime is 4997219. The reversal of 4997218 is 8127994.

It can be written as a sum of positive squares in 2 ways, for example, as 4652649 + 344569 = 2157^2 + 587^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4997219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73455 + ... + 73522.

Almost surely, 2^4997218 is an apocalyptic number.

4997218 is a deficient number, since it is larger than the sum of its proper divisors (2939594).

4997218 is a wasteful number, since it uses less digits than its factorization.

4997218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146996.

The product of its digits is 36288, while the sum is 40.

The square root of 4997218 is about 2235.4458168339. The cubic root of 4997218 is about 170.9658744300.

The spelling of 4997218 in words is "four million, nine hundred ninety-seven thousand, two hundred eighteen".