897883081922 has 6 divisors (see below), whose sum is σ = 1346826632979. Its totient is φ = 448940870930.

The previous prime is 897883081913. The next prime is 897883081993. The reversal of 897883081922 is 229180388798.

It can be written as a sum of positive squares in only one way, i.e., 448941540961 + 448941540961 = 670031^2 + 670031^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=670031.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1005047 + ... + 1675077.

Almost surely, 2^897883081922 is an apocalyptic number.

897883081922 is a deficient number, since it is larger than the sum of its proper divisors (448943551057).

897883081922 is an frugal number, since it uses more digits than its factorization.

897883081922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340064 (or 670033 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 65.

The spelling of 897883081922 in words is "eight hundred ninety-seven billion, eight hundred eighty-three million, eighty-one thousand, nine hundred twenty-two".