6494309 has 4 divisors (see below), whose sum is σ = 6501216. Its totient is φ = 6487404.

The previous prime is 6494297. The next prime is 6494311. The reversal of 6494309 is 9034946.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9034946 = 2 ⋅4517473.

It is a cyclic number.

It is not a de Polignac number, because 6494309 - 2¹² = 6490213 is a prime.

It is a d-powerful number, because it can be written as 6⁶ + 4⁶ + 9³ + 4⁸ + 3¹³ + 0 + 9⁷ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6494339) 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, 1769 + ... + 4014.

It is an arithmetic number, because the mean of its divisors is an integer number (1625304).

Almost surely, 2^6494309 is an apocalyptic number.

It is an amenable number.

6494309 is a deficient number, since it is larger than the sum of its proper divisors (6907).

6494309 is a wasteful number, since it uses less digits than its factorization.

6494309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6906.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 6494309 is about 2548.3934154679. The cubic root of 6494309 is about 186.5710759862.

The spelling of 6494309 in words is "six million, four hundred ninety-four thousand, three hundred nine".