851097 has 16 divisors (see below), whose sum is σ = 1238720. Its totient is φ = 516672.

The previous prime is 851093. The next prime is 851113. The reversal of 851097 is 790158.

It is not a de Polignac number, because 851097 - 2² = 851093 is a prime.

It is a super-2 number, since 2×851097² = 1448732206818, 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 (851093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5343 + ... + 5499.

It is an arithmetic number, because the mean of its divisors is an integer number (77420).

2⁸⁵¹⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

851097 is a deficient number, since it is larger than the sum of its proper divisors (387623).

851097 is a wasteful number, since it uses less digits than its factorization.

851097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 312.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 851097 is about 922.5491856806. The cubic root of 851097 is about 94.7675573083.

The spelling of 851097 in words is "eight hundred fifty-one thousand, ninety-seven".