5649737 has 4 divisors (see below), whose sum is σ = 5654676. Its totient is φ = 5644800.

The previous prime is 5649733. The next prime is 5649739. The reversal of 5649737 is 7379465.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3748096 + 1901641 = 1936^2 + 1379^2 .

It is a cyclic number.

It is not a de Polignac number, because 5649737 - 2² = 5649733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5649694 and 5649703.

It is not an unprimeable number, because it can be changed into a prime (5649733) 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, 233 + ... + 3369.

It is an arithmetic number, because the mean of its divisors is an integer number (1413669).

Almost surely, 2^5649737 is an apocalyptic number.

It is an amenable number.

5649737 is a deficient number, since it is larger than the sum of its proper divisors (4939).

5649737 is a wasteful number, since it uses less digits than its factorization.

5649737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4938.

The product of its digits is 158760, while the sum is 41.

The square root of 5649737 is about 2376.9175416913. The cubic root of 5649737 is about 178.1049858297.

It can be divided in two parts, 564 and 9737, that added together give a palindrome (10301).

The spelling of 5649737 in words is "five million, six hundred forty-nine thousand, seven hundred thirty-seven".