897537 has 4 divisors (see below), whose sum is σ = 1196720. Its totient is φ = 598356.

The previous prime is 897527. The next prime is 897553. The reversal of 897537 is 735798.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 897537 - 2⁶ = 897473 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 897495 and 897504.

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, 149587 + ... + 149592.

It is an arithmetic number, because the mean of its divisors is an integer number (299180).

2⁸⁹⁷⁵³⁷ is an apocalyptic number.

It is an amenable number.

897537 is a deficient number, since it is larger than the sum of its proper divisors (299183).

897537 is a wasteful number, since it uses less digits than its factorization.

897537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299182.

The product of its digits is 52920, while the sum is 39.

The square root of 897537 is about 947.3842937267. The cubic root of 897537 is about 96.4607839079.

It can be divided in two parts, 89 and 7537, that added together give a triangular number (7626 = T₁₂₃).

The spelling of 897537 in words is "eight hundred ninety-seven thousand, five hundred thirty-seven".