897042571 has 4 divisors (see below), whose sum is σ = 897615144. Its totient is φ = 896470000.

The previous prime is 897042563. The next prime is 897042581. The reversal of 897042571 is 175240798.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 175240798 = 2 ⋅87620399.

It is a cyclic number.

It is not a de Polignac number, because 897042571 - 2³ = 897042563 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897042521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283930 + ... + 287071.

It is an arithmetic number, because the mean of its divisors is an integer number (224403786).

Almost surely, 2^897042571 is an apocalyptic number.

897042571 is a deficient number, since it is larger than the sum of its proper divisors (572573).

897042571 is a wasteful number, since it uses less digits than its factorization.

897042571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572572.

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 897042571 is about 29950.6689574707. The cubic root of 897042571 is about 964.4306810367.

The spelling of 897042571 in words is "eight hundred ninety-seven million, forty-two thousand, five hundred seventy-one".