5649946 has 4 divisors (see below), whose sum is σ = 8474922. Its totient is φ = 2824972.

The previous prime is 5649913. The next prime is 5649949. The reversal of 5649946 is 6499465.

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., 5574321 + 75625 = 2361^2 + 275^2 .

It is not an unprimeable number, because it can be changed into a prime (5649949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1412485 + ... + 1412488.

Almost surely, 2^5649946 is an apocalyptic number.

5649946 is a deficient number, since it is larger than the sum of its proper divisors (2824976).

5649946 is a wasteful number, since it uses less digits than its factorization.

5649946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2824975.

The product of its digits is 233280, while the sum is 43.

The square root of 5649946 is about 2376.9615057884. The cubic root of 5649946 is about 178.1071820076.

The spelling of 5649946 in words is "five million, six hundred forty-nine thousand, nine hundred forty-six".