6850505 has 4 divisors (see below), whose sum is σ = 8220612. Its totient is φ = 5480400.

The previous prime is 6850489. The next prime is 6850511. The reversal of 6850505 is 5050586.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5050586 = 2 ⋅2525293.

It can be written as a sum of positive squares in 2 ways, for example, as 1926544 + 4923961 = 1388^2 + 2219^2 .

It is not a de Polignac number, because 6850505 - 2⁴ = 6850489 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 685046 + ... + 685055.

It is an arithmetic number, because the mean of its divisors is an integer number (2055153).

Almost surely, 2^6850505 is an apocalyptic number.

It is an amenable number.

6850505 is a deficient number, since it is larger than the sum of its proper divisors (1370107).

6850505 is a wasteful number, since it uses less digits than its factorization.

6850505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1370106.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 6850505 is about 2617.3469391733. The cubic root of 6850505 is about 189.9215280749.

The spelling of 6850505 in words is "six million, eight hundred fifty thousand, five hundred five".