5647121 has 4 divisors (see below), whose sum is σ = 5892672. Its totient is φ = 5401572.

The previous prime is 5647093. The next prime is 5647129. The reversal of 5647121 is 1217465.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5647121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5647129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 122741 + ... + 122786.

It is an arithmetic number, because the mean of its divisors is an integer number (1473168).

Almost surely, 2^5647121 is an apocalyptic number.

It is an amenable number.

5647121 is a deficient number, since it is larger than the sum of its proper divisors (245551).

5647121 is a wasteful number, since it uses less digits than its factorization.

5647121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245550.

The product of its digits is 1680, while the sum is 26.

The square root of 5647121 is about 2376.3671854324. The cubic root of 5647121 is about 178.0774922447.

The spelling of 5647121 in words is "five million, six hundred forty-seven thousand, one hundred twenty-one".