852397111 has 4 divisors (see below), whose sum is σ = 879893824. Its totient is φ = 824900400.

The previous prime is 852397109. The next prime is 852397193. The reversal of 852397111 is 111793258.

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

It is a cyclic number.

It is not a de Polignac number, because 852397111 - 2¹ = 852397109 is a prime.

It is a super-2 number, since 2×852397111² = 1453161669682292642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (852317111) 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, 13748310 + ... + 13748371.

It is an arithmetic number, because the mean of its divisors is an integer number (219973456).

Almost surely, 2^852397111 is an apocalyptic number.

852397111 is a deficient number, since it is larger than the sum of its proper divisors (27496713).

852397111 is a wasteful number, since it uses less digits than its factorization.

852397111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27496712.

The product of its digits is 15120, while the sum is 37.

The square root of 852397111 is about 29195.8406455440. The cubic root of 852397111 is about 948.1578747882.

The spelling of 852397111 in words is "eight hundred fifty-two million, three hundred ninety-seven thousand, one hundred eleven".