897436259066 has 4 divisors (see below), whose sum is σ = 1346154388602. Its totient is φ = 448718129532.

The previous prime is 897436259063. The next prime is 897436259087. The reversal of 897436259066 is 660952634798.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 660952634798 = 2 ⋅330476317399.

It can be written as a sum of positive squares in only one way, i.e., 556783100041 + 340653159025 = 746179^2 + 583655^2 .

It is a junction number, because it is equal to n+sod(n) for n = 897436258993 and 897436259011.

It is not an unprimeable number, because it can be changed into a prime (897436259063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 224359064765 + ... + 224359064768.

Almost surely, 2^897436259066 is an apocalyptic number.

897436259066 is a deficient number, since it is larger than the sum of its proper divisors (448718129536).

897436259066 is a wasteful number, since it uses less digits than its factorization.

897436259066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448718129535.

The product of its (nonzero) digits is 117573120, while the sum is 65.

The spelling of 897436259066 in words is "eight hundred ninety-seven billion, four hundred thirty-six million, two hundred fifty-nine thousand, sixty-six".