4649866 has 12 divisors (see below), whose sum is σ = 7553142. Its totient is φ = 2145936.

The previous prime is 4649863. The next prime is 4649873. The reversal of 4649866 is 6689464.

It can be written as a sum of positive squares in 3 ways, for example, as 1058841 + 3591025 = 1029^2 + 1895^2 .

It is not an unprimeable number, because it can be changed into a prime (4649863) 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, 6541 + ... + 7216.

Almost surely, 2^4649866 is an apocalyptic number.

4649866 is a deficient number, since it is larger than the sum of its proper divisors (2903276).

4649866 is a wasteful number, since it uses less digits than its factorization.

4649866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13785 (or 13772 counting only the distinct ones).

The product of its digits is 248832, while the sum is 43.

The square root of 4649866 is about 2156.3547945549. The cubic root of 4649866 is about 166.9091501506.

It can be divided in two parts, 46498 and 66, that added together give a palindrome (46564).

The spelling of 4649866 in words is "four million, six hundred forty-nine thousand, eight hundred sixty-six".