897869 has 8 divisors (see below), whose sum is σ = 1061760. Its totient is φ = 742896.

The previous prime is 897847. The next prime is 897877. The reversal of 897869 is 968798.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-897869 is a prime.

It is a super-2 number, since 2×897869² = 1612337482322, which contains 22 as substring.

It is an Ulam number.

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 (897829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2009 + ... + 2414.

It is an arithmetic number, because the mean of its divisors is an integer number (132720).

2⁸⁹⁷⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

897869 is a deficient number, since it is larger than the sum of its proper divisors (163891).

897869 is a wasteful number, since it uses less digits than its factorization.

897869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459.

The product of its digits is 217728, while the sum is 47.

The square root of 897869 is about 947.5594968127. The cubic root of 897869 is about 96.4726760944.

The spelling of 897869 in words is "eight hundred ninety-seven thousand, eight hundred sixty-nine".