897533949 has 16 divisors (see below), whose sum is σ = 1316189952. Its totient is φ = 540575808.

The previous prime is 897533947. The next prime is 897533953. The reversal of 897533949 is 949335798.

It is not a de Polignac number, because 897533949 - 2¹ = 897533947 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897533947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 242994 + ... + 246659.

It is an arithmetic number, because the mean of its divisors is an integer number (82261872).

Almost surely, 2^897533949 is an apocalyptic number.

It is an amenable number.

897533949 is a deficient number, since it is larger than the sum of its proper divisors (418656003).

897533949 is a wasteful number, since it uses less digits than its factorization.

897533949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 489716.

The product of its digits is 7348320, while the sum is 57.

The square root of 897533949 is about 29958.8709566966. The cubic root of 897533949 is about 964.6067460793.

It can be divided in two parts, 8975 and 33949, that added together give a palindrome (42924).

The spelling of 897533949 in words is "eight hundred ninety-seven million, five hundred thirty-three thousand, nine hundred forty-nine".