897843 has 4 divisors (see below), whose sum is σ = 1197128. Its totient is φ = 598560.

The previous prime is 897829. The next prime is 897847. The reversal of 897843 is 348798.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 897843 - 2⁶ = 897779 is a prime.

It is a super-2 number, since 2×897843² = 1612244105298, which contains 22 as substring.

It is a d-powerful number, because it can be written as 8 + 9⁴ + 8 + 7⁷ + 4⁸ + 3⁷ .

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (897847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149638 + ... + 149643.

It is an arithmetic number, because the mean of its divisors is an integer number (299282).

2⁸⁹⁷⁸⁴³ is an apocalyptic number.

897843 is a deficient number, since it is larger than the sum of its proper divisors (299285).

897843 is a wasteful number, since it uses less digits than its factorization.

897843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299284.

The product of its digits is 48384, while the sum is 39.

The square root of 897843 is about 947.5457772583. The cubic root of 897843 is about 96.4717448844.

The spelling of 897843 in words is "eight hundred ninety-seven thousand, eight hundred forty-three".