6499345 has 4 divisors (see below), whose sum is σ = 7799220. Its totient is φ = 5199472.

The previous prime is 6499333. The next prime is 6499351. The reversal of 6499345 is 5439946.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3968064 + 2531281 = 1992^2 + 1591^2 .

It is a cyclic number.

It is not a de Polignac number, because 6499345 - 2⁷ = 6499217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6499298 and 6499307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 649930 + ... + 649939.

It is an arithmetic number, because the mean of its divisors is an integer number (1949805).

Almost surely, 2^6499345 is an apocalyptic number.

It is an amenable number.

6499345 is a deficient number, since it is larger than the sum of its proper divisors (1299875).

6499345 is a wasteful number, since it uses less digits than its factorization.

6499345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299874.

The product of its digits is 116640, while the sum is 40.

The square root of 6499345 is about 2549.3812974916. The cubic root of 6499345 is about 186.6192889257.

The spelling of 6499345 in words is "six million, four hundred ninety-nine thousand, three hundred forty-five".