993366897 has 4 divisors (see below), whose sum is σ = 1324489200. Its totient is φ = 662244596.

The previous prime is 993366859. The next prime is 993366923. The reversal of 993366897 is 798663399.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 993366897 - 2⁸ = 993366641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 993366897.

It is not an unprimeable number, because it can be changed into a prime (993366817) 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 3 ways as a sum of consecutive naturals, for example, 165561147 + ... + 165561152.

It is an arithmetic number, because the mean of its divisors is an integer number (331122300).

Almost surely, 2^993366897 is an apocalyptic number.

It is an amenable number.

993366897 is a deficient number, since it is larger than the sum of its proper divisors (331122303).

993366897 is a wasteful number, since it uses less digits than its factorization.

993366897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331122302.

The product of its digits is 13226976, while the sum is 60.

The square root of 993366897 is about 31517.7235377176. The cubic root of 993366897 is about 997.7840588988.

The spelling of 993366897 in words is "nine hundred ninety-three million, three hundred sixty-six thousand, eight hundred ninety-seven".