897547 has 4 divisors (see below), whose sum is σ = 1025776. Its totient is φ = 769320.

The previous prime is 897527. The next prime is 897553. The reversal of 897547 is 745798.

897547 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-897547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897517) 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, 64104 + ... + 64117.

It is an arithmetic number, because the mean of its divisors is an integer number (256444).

2⁸⁹⁷⁵⁴⁷ is an apocalyptic number.

897547 is a deficient number, since it is larger than the sum of its proper divisors (128229).

897547 is a wasteful number, since it uses less digits than its factorization.

897547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128228.

The product of its digits is 70560, while the sum is 40.

The square root of 897547 is about 947.3895714013. The cubic root of 897547 is about 96.4611421491.

It can be divided in two parts, 897 and 547, that added together give a square (1444 = 38²).

The spelling of 897547 in words is "eight hundred ninety-seven thousand, five hundred forty-seven".