5646489 has 4 divisors (see below), whose sum is σ = 7528656. Its totient is φ = 3764324.

The previous prime is 5646451. The next prime is 5646517. The reversal of 5646489 is 9846465.

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-5646489 is a prime.

It is a D-number.

5646489 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 5646489.

It is not an unprimeable number, because it can be changed into a prime (5646409) 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, 941079 + ... + 941084.

It is an arithmetic number, because the mean of its divisors is an integer number (1882164).

Almost surely, 2^5646489 is an apocalyptic number.

It is an amenable number.

5646489 is a deficient number, since it is larger than the sum of its proper divisors (1882167).

5646489 is a wasteful number, since it uses less digits than its factorization.

5646489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1882166.

The product of its digits is 207360, while the sum is 42.

The square root of 5646489 is about 2376.2342056287. The cubic root of 5646489 is about 178.0708487902.

The spelling of 5646489 in words is "five million, six hundred forty-six thousand, four hundred eighty-nine".