6489923 has 4 divisors (see below), whose sum is σ = 7079928. Its totient is φ = 5899920.

The previous prime is 6489913. The next prime is 6489949. The reversal of 6489923 is 3299846.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6489923 - 2⁶ = 6489859 is a prime.

It is a d-powerful number, because it can be written as 6 + 4¹¹ + 8⁷ + 9⁴ + 9⁴ + 2¹³ + 3¹¹ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6489913) 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, 294986 + ... + 295007.

It is an arithmetic number, because the mean of its divisors is an integer number (1769982).

Almost surely, 2^6489923 is an apocalyptic number.

6489923 is a deficient number, since it is larger than the sum of its proper divisors (590005).

6489923 is a wasteful number, since it uses less digits than its factorization.

6489923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590004.

The product of its digits is 93312, while the sum is 41.

The square root of 6489923 is about 2547.5327279546. The cubic root of 6489923 is about 186.5290656135.

The spelling of 6489923 in words is "six million, four hundred eighty-nine thousand, nine hundred twenty-three".