897142371 has 4 divisors (see below), whose sum is σ = 1196189832. Its totient is φ = 598094912.

The previous prime is 897142349. The next prime is 897142381. The reversal of 897142371 is 173241798.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 897142371 - 2⁶ = 897142307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (897142321) 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, 149523726 + ... + 149523731.

It is an arithmetic number, because the mean of its divisors is an integer number (299047458).

Almost surely, 2^897142371 is an apocalyptic number.

897142371 is a deficient number, since it is larger than the sum of its proper divisors (299047461).

897142371 is a wasteful number, since it uses less digits than its factorization.

897142371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299047460.

The product of its digits is 84672, while the sum is 42.

The square root of 897142371 is about 29952.3349841043. The cubic root of 897142371 is about 964.4664454534.

The spelling of 897142371 in words is "eight hundred ninety-seven million, one hundred forty-two thousand, three hundred seventy-one".