897697289 has 8 divisors (see below), whose sum is σ = 926035968. Its totient is φ = 869798160.

The previous prime is 897697277. The next prime is 897697357. The reversal of 897697289 is 982796798.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 897697289 - 2²⁸ = 629261833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897697249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105737 + ... + 113910.

It is an arithmetic number, because the mean of its divisors is an integer number (115754496).

Almost surely, 2^897697289 is an apocalyptic number.

It is an amenable number.

897697289 is a deficient number, since it is larger than the sum of its proper divisors (28338679).

897697289 is a wasteful number, since it uses less digits than its factorization.

897697289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219775.

The product of its digits is 27433728, while the sum is 65.

The square root of 897697289 is about 29961.5969033695. The cubic root of 897697289 is about 964.6652580012.

The spelling of 897697289 in words is "eight hundred ninety-seven million, six hundred ninety-seven thousand, two hundred eighty-nine".