5649988 has 6 divisors (see below), whose sum is σ = 9887486. Its totient is φ = 2824992.

The previous prime is 5649977. The next prime is 5649997. The reversal of 5649988 is 8899465.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 4743684 + 906304 = 2178^2 + 952^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 706245 + ... + 706252.

Almost surely, 2^5649988 is an apocalyptic number.

It is an amenable number.

5649988 is a deficient number, since it is larger than the sum of its proper divisors (4237498).

5649988 is a wasteful number, since it uses less digits than its factorization.

5649988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1412501 (or 1412499 counting only the distinct ones).

The product of its digits is 622080, while the sum is 49.

The square root of 5649988 is about 2376.9703405806. The cubic root of 5649988 is about 178.1076233382.

The spelling of 5649988 in words is "five million, six hundred forty-nine thousand, nine hundred eighty-eight".