6490919 has 4 divisors (see below), whose sum is σ = 6540600. Its totient is φ = 6441240.

The previous prime is 6490909. The next prime is 6490921. The reversal of 6490919 is 9190946.

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 6490919 - 2⁴ = 6490903 is a prime.

It is a super-2 number, since 2×6490919² = 84264058929122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6490909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24644 + ... + 24905.

It is an arithmetic number, because the mean of its divisors is an integer number (1635150).

Almost surely, 2^6490919 is an apocalyptic number.

6490919 is a deficient number, since it is larger than the sum of its proper divisors (49681).

6490919 is a wasteful number, since it uses less digits than its factorization.

6490919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49680.

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 6490919 is about 2547.7282037140. The cubic root of 6490919 is about 186.5386072494.

The spelling of 6490919 in words is "six million, four hundred ninety thousand, nine hundred nineteen".