943111997 has 8 divisors (see below), whose sum is σ = 948167640. Its totient is φ = 938064960.

The previous prime is 943111993. The next prime is 943111999. The reversal of 943111997 is 799111349.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 324396121 + 618715876 = 18011^2 + 24874^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 943111997 - 2² = 943111993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (943111993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425063 + ... + 427275.

It is an arithmetic number, because the mean of its divisors is an integer number (118520955).

Almost surely, 2^943111997 is an apocalyptic number.

It is an amenable number.

943111997 is a deficient number, since it is larger than the sum of its proper divisors (5055643).

943111997 is a wasteful number, since it uses less digits than its factorization.

943111997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4303.

The product of its digits is 61236, while the sum is 44.

The square root of 943111997 is about 30710.1285734853. The cubic root of 943111997 is about 980.6659353406.

The spelling of 943111997 in words is "nine hundred forty-three million, one hundred eleven thousand, nine hundred ninety-seven".