897665045 has 8 divisors (see below), whose sum is σ = 1124032896. Its totient is φ = 686908816.

The previous prime is 897665023. The next prime is 897665077. The reversal of 897665045 is 540566798.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 897665045 - 2²² = 893470741 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 897664984 and 897665002.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3902777 + ... + 3903006.

It is an arithmetic number, because the mean of its divisors is an integer number (140504112).

Almost surely, 2^897665045 is an apocalyptic number.

It is an amenable number.

897665045 is a deficient number, since it is larger than the sum of its proper divisors (226367851).

897665045 is a wasteful number, since it uses less digits than its factorization.

897665045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7805811.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The square root of 897665045 is about 29961.0588097283. The cubic root of 897665045 is about 964.6537080650.

The spelling of 897665045 in words is "eight hundred ninety-seven million, six hundred sixty-five thousand, forty-five".