5649972 has 12 divisors (see below), whose sum is σ = 13183296. Its totient is φ = 1883320.

The previous prime is 5649953. The next prime is 5649977. The reversal of 5649972 is 2799465.

It is a tau number, because it is divible by the number of its divisors (12).

It is a d-powerful number, because it can be written as 5⁷ + 6² + 4⁹ + 9 + 9⁷ + 7⁴ + 2¹⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5649977) 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 in 3 ways as a sum of consecutive naturals, for example, 235404 + ... + 235427.

It is an arithmetic number, because the mean of its divisors is an integer number (1098608).

Almost surely, 2^5649972 is an apocalyptic number.

It is an amenable number.

5649972 is an abundant number, since it is smaller than the sum of its proper divisors (7533324).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5649972 is a wasteful number, since it uses less digits than its factorization.

5649972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470838 (or 470836 counting only the distinct ones).

The product of its digits is 136080, while the sum is 42.

The square root of 5649972 is about 2376.9669749494. The cubic root of 5649972 is about 178.1074552125.

The spelling of 5649972 in words is "five million, six hundred forty-nine thousand, nine hundred seventy-two".