4216858 has 4 divisors (see below), whose sum is σ = 6325290. Its totient is φ = 2108428.

The previous prime is 4216847. The next prime is 4216871. The reversal of 4216858 is 8586124.

4216858 is nontrivially palindromic in base 9.

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., 2331729 + 1885129 = 1527^2 + 1373^2 .

It is a d-powerful number, because it can be written as 4⁵ + 2²² + 1 + 6⁴ + 8³ + 5⁶ + 8⁴ .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1054213 + ... + 1054216.

Almost surely, 2^4216858 is an apocalyptic number.

4216858 is a deficient number, since it is larger than the sum of its proper divisors (2108432).

4216858 is a wasteful number, since it uses less digits than its factorization.

4216858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108431.

The product of its digits is 15360, while the sum is 34.

The square root of 4216858 is about 2053.4989651811. The cubic root of 4216858 is about 161.5584429379.

It can be divided in two parts, 42 and 16858, that added together give a square (16900 = 130²).

The spelling of 4216858 in words is "four million, two hundred sixteen thousand, eight hundred fifty-eight".