4619866 has 4 divisors (see below), whose sum is σ = 6929802. Its totient is φ = 2309932.

The previous prime is 4619843. The next prime is 4619873. The reversal of 4619866 is 6689164.

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., 3861225 + 758641 = 1965^2 + 871^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1154965 + ... + 1154968.

Almost surely, 2^4619866 is an apocalyptic number.

4619866 is a deficient number, since it is larger than the sum of its proper divisors (2309936).

4619866 is a wasteful number, since it uses less digits than its factorization.

4619866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309935.

The product of its digits is 62208, while the sum is 40.

The square root of 4619866 is about 2149.3873545734. The cubic root of 4619866 is about 166.5494206507.

It can be divided in two parts, 46198 and 66, that added together give a palindrome (46264).

The spelling of 4619866 in words is "four million, six hundred nineteen thousand, eight hundred sixty-six".