897870 has 24 divisors (see below), whose sum is σ = 2167416. Its totient is φ = 238048.

The previous prime is 897847. The next prime is 897877. The reversal of 897870 is 78798.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897877) by changing a digit.

897870 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 11 ways as a sum of consecutive naturals, for example, 5104 + ... + 5276.

It is an arithmetic number, because the mean of its divisors is an integer number (90309).

2⁸⁹⁷⁸⁷⁰ is an apocalyptic number.

897870 is an abundant number, since it is smaller than the sum of its proper divisors (1269546).

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

897870 is a wasteful number, since it uses less digits than its factorization.

897870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356 (or 183 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 39.

The square root of 897870 is about 947.5600244839. The cubic root of 897870 is about 96.4727119098.

The spelling of 897870 in words is "eight hundred ninety-seven thousand, eight hundred seventy".