4213557 has 6 divisors (see below), whose sum is σ = 6086262. Its totient is φ = 2809032.

The previous prime is 4213543. The next prime is 4213567. The reversal of 4213557 is 7553124.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3944196 + 269361 = 1986^2 + 519^2 .

It is not a de Polignac number, because 4213557 - 2¹⁵ = 4180789 is a prime.

It is a d-powerful number, because it can be written as 4¹¹ + 2⁷ + 1 + 3⁷ + 5 + 5³ + 7⁵ .

4213557 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4213557.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4213567) 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, 234078 + ... + 234095.

It is an arithmetic number, because the mean of its divisors is an integer number (1014377).

Almost surely, 2^4213557 is an apocalyptic number.

It is an amenable number.

4213557 is a deficient number, since it is larger than the sum of its proper divisors (1872705).

4213557 is a wasteful number, since it uses less digits than its factorization.

4213557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468179 (or 468176 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 4213557 is about 2052.6950577229. The cubic root of 4213557 is about 161.5162753936.

The spelling of 4213557 in words is "four million, two hundred thirteen thousand, five hundred fifty-seven".