897822131 has 8 divisors (see below), whose sum is σ = 926728800. Its totient is φ = 869159808.

The previous prime is 897822119. The next prime is 897822137. The reversal of 897822131 is 131228798.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-897822131 is a prime.

It is a super-2 number, since 2×897822131² = 1612169157826762322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897822137) 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 7 ways as a sum of consecutive naturals, for example, 53606 + ... + 68331.

It is an arithmetic number, because the mean of its divisors is an integer number (115841100).

Almost surely, 2^897822131 is an apocalyptic number.

897822131 is a deficient number, since it is larger than the sum of its proper divisors (28906669).

897822131 is a wasteful number, since it uses less digits than its factorization.

897822131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122173.

The product of its digits is 48384, while the sum is 41.

The square root of 897822131 is about 29963.6801978662. The cubic root of 897822131 is about 964.7099743212.

The spelling of 897822131 in words is "eight hundred ninety-seven million, eight hundred twenty-two thousand, one hundred thirty-one".