897816957 has 8 divisors (see below), whose sum is σ = 1203105600. Its totient is φ = 595536480.

The previous prime is 897816949. The next prime is 897816973. The reversal of 897816957 is 759618798.

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

It is not a de Polignac number, because 897816957 - 2³ = 897816949 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 897816957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (897816917) 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, 751344 + ... + 752537.

It is an arithmetic number, because the mean of its divisors is an integer number (150388200).

Almost surely, 2^897816957 is an apocalyptic number.

It is an amenable number.

897816957 is a deficient number, since it is larger than the sum of its proper divisors (305288643).

897816957 is a wasteful number, since it uses less digits than its factorization.

897816957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1504083.

The product of its digits is 7620480, while the sum is 60.

The square root of 897816957 is about 29963.5938598827. The cubic root of 897816957 is about 964.7081211631.

The spelling of 897816957 in words is "eight hundred ninety-seven million, eight hundred sixteen thousand, nine hundred fifty-seven".