943197897 has 4 divisors (see below), whose sum is σ = 1257597200. Its totient is φ = 628798596.

The previous prime is 943197889. The next prime is 943197923. The reversal of 943197897 is 798791349.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 943197897 - 2³ = 943197889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (943197817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 157199647 + ... + 157199652.

It is an arithmetic number, because the mean of its divisors is an integer number (314399300).

Almost surely, 2^943197897 is an apocalyptic number.

It is an amenable number.

943197897 is a deficient number, since it is larger than the sum of its proper divisors (314399303).

943197897 is a wasteful number, since it uses less digits than its factorization.

943197897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314399302.

The product of its digits is 3429216, while the sum is 57.

The square root of 943197897 is about 30711.5271030276. The cubic root of 943197897 is about 980.6957079256.

The spelling of 943197897 in words is "nine hundred forty-three million, one hundred ninety-seven thousand, eight hundred ninety-seven".