6490423 has 4 divisors (see below), whose sum is σ = 6648768. Its totient is φ = 6332080.

The previous prime is 6490417. The next prime is 6490427. The reversal of 6490423 is 3240946.

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 6490423 - 2⁵ = 6490391 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6490391 and 6490400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6490427) 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, 79111 + ... + 79192.

It is an arithmetic number, because the mean of its divisors is an integer number (1662192).

Almost surely, 2^6490423 is an apocalyptic number.

6490423 is a deficient number, since it is larger than the sum of its proper divisors (158345).

6490423 is a wasteful number, since it uses less digits than its factorization.

6490423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158344.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 6490423 is about 2547.6308602307. The cubic root of 6490423 is about 186.5338557134.

The spelling of 6490423 in words is "six million, four hundred ninety thousand, four hundred twenty-three".