897297728308 has 6 divisors (see below), whose sum is σ = 1570271024546. Its totient is φ = 448648864152.

The previous prime is 897297728303. The next prime is 897297728323. The reversal of 897297728308 is 803827792798.

It can be written as a sum of positive squares in only one way, i.e., 832258447524 + 65039280784 = 912282^2 + 255028^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897297728303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112162216035 + ... + 112162216042.

Almost surely, 2^897297728308 is an apocalyptic number.

It is an amenable number.

897297728308 is a deficient number, since it is larger than the sum of its proper divisors (672973296238).

897297728308 is a wasteful number, since it uses less digits than its factorization.

897297728308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224324432081 (or 224324432079 counting only the distinct ones).

The product of its (nonzero) digits is 170698752, while the sum is 70.

The spelling of 897297728308 in words is "eight hundred ninety-seven billion, two hundred ninety-seven million, seven hundred twenty-eight thousand, three hundred eight".