897117711 has 16 divisors (see below), whose sum is σ = 1411135488. Its totient is φ = 496101600.

The previous prime is 897117703. The next prime is 897117719. The reversal of 897117711 is 117711798.

It is an interprime number because it is at equal distance from previous prime (897117703) and next prime (897117719).

It is not a de Polignac number, because 897117711 - 2³ = 897117703 is a prime.

It is a super-3 number, since 3×897117711³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897117719) 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, 688380 + ... + 689681.

It is an arithmetic number, because the mean of its divisors is an integer number (88195968).

Almost surely, 2^897117711 is an apocalyptic number.

897117711 is a deficient number, since it is larger than the sum of its proper divisors (514017777).

897117711 is a wasteful number, since it uses less digits than its factorization.

897117711 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1378102.

The product of its digits is 24696, while the sum is 42.

The square root of 897117711 is about 29951.9233272256. The cubic root of 897117711 is about 964.4576085206.

The spelling of 897117711 in words is "eight hundred ninety-seven million, one hundred seventeen thousand, seven hundred eleven".