212327797 has 4 divisors (see below), whose sum is σ = 231630336. Its totient is φ = 193025260.

The previous prime is 212327779. The next prime is 212327827. The reversal of 212327797 is 797723212.

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 212327797 - 2¹⁵ = 212295029 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 (212327707) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9651253 + ... + 9651274.

It is an arithmetic number, because the mean of its divisors is an integer number (57907584).

Almost surely, 2^212327797 is an apocalyptic number.

It is an amenable number.

212327797 is a deficient number, since it is larger than the sum of its proper divisors (19302539).

212327797 is a wasteful number, since it uses less digits than its factorization.

212327797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19302538.

The product of its digits is 74088, while the sum is 40.

The square root of 212327797 is about 14571.4720258456. The cubic root of 212327797 is about 596.5803591582.

The spelling of 212327797 in words is "two hundred twelve million, three hundred twenty-seven thousand, seven hundred ninety-seven".