6850513 has 4 divisors (see below), whose sum is σ = 7035700. Its totient is φ = 6665328.

The previous prime is 6850511. The next prime is 6850531. The reversal of 6850513 is 3150586.

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 2782224 + 4068289 = 1668^2 + 2017^2 .

It is not a de Polignac number, because 6850513 - 2¹ = 6850511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6850511) 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, 92538 + ... + 92611.

It is an arithmetic number, because the mean of its divisors is an integer number (1758925).

Almost surely, 2^6850513 is an apocalyptic number.

It is an amenable number.

6850513 is a deficient number, since it is larger than the sum of its proper divisors (185187).

6850513 is a wasteful number, since it uses less digits than its factorization.

6850513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185186.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 6850513 is about 2617.3484674380. The cubic root of 6850513 is about 189.9216020048.

The spelling of 6850513 in words is "six million, eight hundred fifty thousand, five hundred thirteen".