897129 has 16 divisors (see below), whose sum is σ = 1344000. Its totient is φ = 591408.

The previous prime is 897119. The next prime is 897133. The reversal of 897129 is 921798.

It is a happy number.

897129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 897129 - 2⁹ = 896617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 897093 and 897102.

It is not an unprimeable number, because it can be changed into a prime (897119) 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, 3912 + ... + 4134.

It is an arithmetic number, because the mean of its divisors is an integer number (84000).

2⁸⁹⁷¹²⁹ is an apocalyptic number.

It is an amenable number.

897129 is a deficient number, since it is larger than the sum of its proper divisors (446871).

897129 is a wasteful number, since it uses less digits than its factorization.

897129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381 (or 375 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 897129 is about 947.1689395245. The cubic root of 897129 is about 96.4461653964.

The spelling of 897129 in words is "eight hundred ninety-seven thousand, one hundred twenty-nine".