6489623 has 4 divisors (see below), whose sum is σ = 7416720. Its totient is φ = 5562528.

The previous prime is 6489601. The next prime is 6489629. The reversal of 6489623 is 3269846.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3269846 = 2 ⋅1634923.

It is a cyclic number.

It is not a de Polignac number, because 6489623 - 2⁶ = 6489559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6489629) 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, 463538 + ... + 463551.

It is an arithmetic number, because the mean of its divisors is an integer number (1854180).

Almost surely, 2^6489623 is an apocalyptic number.

6489623 is a deficient number, since it is larger than the sum of its proper divisors (927097).

6489623 is an equidigital number, since it uses as much as digits as its factorization.

6489623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927096.

The product of its digits is 62208, while the sum is 38.

The square root of 6489623 is about 2547.4738467745. The cubic root of 6489623 is about 186.5261914355.

The spelling of 6489623 in words is "six million, four hundred eighty-nine thousand, six hundred twenty-three".