6490945 has 8 divisors (see below), whose sum is σ = 8127936. Its totient is φ = 4966896.

The previous prime is 6490943. The next prime is 6490961. The reversal of 6490945 is 5490946.

6490945 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6490945 - 2¹ = 6490943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6490943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28107 + ... + 28336.

It is an arithmetic number, because the mean of its divisors is an integer number (1015992).

Almost surely, 2^6490945 is an apocalyptic number.

It is an amenable number.

6490945 is a deficient number, since it is larger than the sum of its proper divisors (1636991).

6490945 is a wasteful number, since it uses less digits than its factorization.

6490945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56471.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 6490945 is about 2547.7333062940. The cubic root of 6490945 is about 186.5388563151.

Subtracting from 6490945 its reverse (5490946), we obtain a palindrome (999999).

The spelling of 6490945 in words is "six million, four hundred ninety thousand, nine hundred forty-five".