850039115 has 4 divisors (see below), whose sum is σ = 1020046944. Its totient is φ = 680031288.

The previous prime is 850039109. The next prime is 850039139. The reversal of 850039115 is 511930058.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 511930058 = 2 ⋅255965029.

It is a cyclic number.

It is not a de Polignac number, because 850039115 - 2²⁰ = 848990539 is a prime.

It is a Duffinian 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, 85003907 + ... + 85003916.

It is an arithmetic number, because the mean of its divisors is an integer number (255011736).

Almost surely, 2^850039115 is an apocalyptic number.

850039115 is a deficient number, since it is larger than the sum of its proper divisors (170007829).

850039115 is a wasteful number, since it uses less digits than its factorization.

850039115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170007828.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 850039115 is about 29155.4302832251. The cubic root of 850039115 is about 947.2827673148.

The spelling of 850039115 in words is "eight hundred fifty million, thirty-nine thousand, one hundred fifteen".