5661744 has 40 divisors (see below), whose sum is σ = 15957312. Its totient is φ = 1715520.

The previous prime is 5661743. The next prime is 5661779. The reversal of 5661744 is 4471665.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (5661743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4834 + ... + 5889.

Almost surely, 2^5661744 is an apocalyptic number.

It is an amenable number.

5661744 is an abundant number, since it is smaller than the sum of its proper divisors (10295568).

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

5661744 is a wasteful number, since it uses less digits than its factorization.

5661744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10745 (or 10739 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 5661744 is about 2379.4419513827. The cubic root of 5661744 is about 178.2310680060.

The spelling of 5661744 in words is "five million, six hundred sixty-one thousand, seven hundred forty-four".