897406 has 4 divisors (see below), whose sum is σ = 1346112. Its totient is φ = 448702.

The previous prime is 897401. The next prime is 897433. The reversal of 897406 is 604798.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 604798 = 2 ⋅302399.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897401) by changing a digit.

897406 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224350 + ... + 224353.

It is an arithmetic number, because the mean of its divisors is an integer number (336528).

2⁸⁹⁷⁴⁰⁶ is an apocalyptic number.

897406 is a deficient number, since it is larger than the sum of its proper divisors (448706).

897406 is a wasteful number, since it uses less digits than its factorization.

897406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448705.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 897406 is about 947.3151534732. The cubic root of 897406 is about 96.4560907021.

The spelling of 897406 in words is "eight hundred ninety-seven thousand, four hundred six".