212302993 has 8 divisors (see below), whose sum is σ = 246049920. Its totient is φ = 179410560.

The previous prime is 212302991. The next prime is 212303011. The reversal of 212302993 is 399203212.

It is a happy number.

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

It is not a de Polignac number, because 212302993 - 2¹ = 212302991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212302991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 213088 + ... + 214081.

It is an arithmetic number, because the mean of its divisors is an integer number (30756240).

Almost surely, 2^212302993 is an apocalyptic number.

It is an amenable number.

212302993 is a deficient number, since it is larger than the sum of its proper divisors (33746927).

212302993 is an equidigital number, since it uses as much as digits as its factorization.

212302993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427247.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 212302993 is about 14570.6208858785. The cubic root of 212302993 is about 596.5571275391.

The spelling of 212302993 in words is "two hundred twelve million, three hundred two thousand, nine hundred ninety-three".