212330993 has 8 divisors (see below), whose sum is σ = 242766720. Its totient is φ = 181920960.

The previous prime is 212330983. The next prime is 212330999. The reversal of 212330993 is 399033212.

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 212330993 - 2⁴ = 212330977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212330999) 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, 16988 + ... + 26706.

It is an arithmetic number, because the mean of its divisors is an integer number (30345840).

Almost surely, 2^212330993 is an apocalyptic number.

It is an amenable number.

212330993 is a deficient number, since it is larger than the sum of its proper divisors (30435727).

212330993 is an equidigital number, since it uses as much as digits as its factorization.

212330993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12847.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 212330993 is about 14571.5816917725. The cubic root of 212330993 is about 596.5833524250.

The spelling of 212330993 in words is "two hundred twelve million, three hundred thirty thousand, nine hundred ninety-three".