897156 has 72 divisors (see below), whose sum is σ = 2568384. Its totient is φ = 272160.

The previous prime is 897137. The next prime is 897157. The reversal of 897156 is 651798.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 897156.

It is not an unprimeable number, because it can be changed into a prime (897157) by changing a digit.

897156 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12601 + ... + 12671.

It is an arithmetic number, because the mean of its divisors is an integer number (35672).

2⁸⁹⁷¹⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 897156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1284192).

897156 is an abundant number, since it is smaller than the sum of its proper divisors (1671228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

897156 is a wasteful number, since it uses less digits than its factorization.

897156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 89 counting only the distinct ones).

The product of its digits is 15120, while the sum is 36.

The square root of 897156 is about 947.1831924184. The cubic root of 897156 is about 96.4471329348.

The spelling of 897156 in words is "eight hundred ninety-seven thousand, one hundred fifty-six".