850140853 has 4 divisors (see below), whose sum is σ = 864550080. Its totient is φ = 835731628.

The previous prime is 850140847. The next prime is 850140859. The reversal of 850140853 is 358041058.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (850140847) and next prime (850140859).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-850140853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850140859) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7204525 + ... + 7204642.

It is an arithmetic number, because the mean of its divisors is an integer number (216137520).

Almost surely, 2^850140853 is an apocalyptic number.

It is an amenable number.

850140853 is a deficient number, since it is larger than the sum of its proper divisors (14409227).

850140853 is a wasteful number, since it uses less digits than its factorization.

850140853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14409226.

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 850140853 is about 29157.1749831838. The cubic root of 850140853 is about 947.3205580501.

The spelling of 850140853 in words is "eight hundred fifty million, one hundred forty thousand, eight hundred fifty-three".