2849866 has 4 divisors (see below), whose sum is σ = 4274802. Its totient is φ = 1424932.

The previous prime is 2849857. The next prime is 2849887. The reversal of 2849866 is 6689482.

It is a happy number.

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., 1879641 + 970225 = 1371^2 + 985^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 712465 + ... + 712468.

2^2849866 is an apocalyptic number.

2849866 is a deficient number, since it is larger than the sum of its proper divisors (1424936).

2849866 is a wasteful number, since it uses less digits than its factorization.

2849866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424935.

The product of its digits is 165888, while the sum is 43.

The square root of 2849866 is about 1688.1546137721. The cubic root of 2849866 is about 141.7777718179. Note that the first 5 decimals are identical.

It can be divided in two parts, 28 and 49866, that added together give a palindrome (49894).

The spelling of 2849866 in words is "two million, eight hundred forty-nine thousand, eight hundred sixty-six".