897338383931 has 4 divisors (see below), whose sum is σ = 978914600664. Its totient is φ = 815762167200.

The previous prime is 897338383919. The next prime is 897338383937. The reversal of 897338383931 is 139383833798.

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 897338383931 - 2³⁰ = 896264642107 is a prime.

It is a super-2 number, since 2×897338383931² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (897338383937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40788108350 + ... + 40788108371.

It is an arithmetic number, because the mean of its divisors is an integer number (244728650166).

Almost surely, 2^897338383931 is an apocalyptic number.

897338383931 is a deficient number, since it is larger than the sum of its proper divisors (81576216733).

897338383931 is a wasteful number, since it uses less digits than its factorization.

897338383931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81576216732.

The product of its digits is 70543872, while the sum is 65.

The spelling of 897338383931 in words is "eight hundred ninety-seven billion, three hundred thirty-eight million, three hundred eighty-three thousand, nine hundred thirty-one".