897068496769 has 3 divisors (see below), whose sum is σ = 897069443907. Its totient is φ = 897067549632.

The previous prime is 897068496763. The next prime is 897068496799. The reversal of 897068496769 is 967694860798.

The square root of 897068496769 is 947137.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 401328585025 + 495739911744 = 633505^2 + 704088^2 .

It is not a de Polignac number, because 897068496769 - 2³¹ = 894921013121 is a prime.

It is a super-2 number, since 2×897068496769² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897068496763) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 473569 + ... + 1420705.

It is an arithmetic number, because the mean of its divisors is an integer number (299023147969).

Almost surely, 2^897068496769 is an apocalyptic number.

897068496769 is the 947137-th square number.

897068496769 is the 473569-th centered octagonal number.

It is an amenable number.

897068496769 is a deficient number, since it is larger than the sum of its proper divisors (947138).

897068496769 is an frugal number, since it uses more digits than its factorization.

897068496769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1894274 (or 947137 counting only the distinct ones).

The product of its (nonzero) digits is 1975228416, while the sum is 79.

The spelling of 897068496769 in words is "eight hundred ninety-seven billion, sixty-eight million, four hundred ninety-six thousand, seven hundred sixty-nine".