897074069517 has 6 divisors (see below), whose sum is σ = 1295773655982. Its totient is φ = 598049379672.

The previous prime is 897074069501. The next prime is 897074069531. The reversal of 897074069517 is 715960470798.

897074069517 is a `hidden beast` number, since 8 + 9 + 70 + 7 + 40 + 6 + 9 + 517 = 666.

It can be written as a sum of positive squares in only one way, i.e., 664691261796 + 232382807721 = 815286^2 + 482061^2 .

It is not a de Polignac number, because 897074069517 - 2⁴ = 897074069501 is a prime.

It is a super-2 number, since 2×897074069517² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897074069587) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49837448298 + ... + 49837448315.

It is an arithmetic number, because the mean of its divisors is an integer number (215962275997).

Almost surely, 2^897074069517 is an apocalyptic number.

It is an amenable number.

897074069517 is a deficient number, since it is larger than the sum of its proper divisors (398699586465).

897074069517 is a wasteful number, since it uses less digits than its factorization.

897074069517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99674896619 (or 99674896616 counting only the distinct ones).

The product of its (nonzero) digits is 26671680, while the sum is 63.

The spelling of 897074069517 in words is "eight hundred ninety-seven billion, seventy-four million, sixty-nine thousand, five hundred seventeen".