212352893 has 4 divisors (see below), whose sum is σ = 212438688. Its totient is φ = 212267100.

The previous prime is 212352871. The next prime is 212352901. The reversal of 212352893 is 398253212.

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 212352893 - 2¹² = 212348797 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 (212352823) 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, 39071 + ... + 44172.

It is an arithmetic number, because the mean of its divisors is an integer number (53109672).

Almost surely, 2^212352893 is an apocalyptic number.

It is an amenable number.

212352893 is a deficient number, since it is larger than the sum of its proper divisors (85795).

212352893 is an equidigital number, since it uses as much as digits as its factorization.

212352893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85794.

The product of its digits is 25920, while the sum is 35.

The square root of 212352893 is about 14572.3331350886. Note that the first 3 decimals coincide. The cubic root of 212352893 is about 596.6038624254.

The spelling of 212352893 in words is "two hundred twelve million, three hundred fifty-two thousand, eight hundred ninety-three".