212372697 has 4 divisors (see below), whose sum is σ = 283163600. Its totient is φ = 141581796.

The previous prime is 212372669. The next prime is 212372717. The reversal of 212372697 is 796273212.

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 not a de Polignac number, because 212372697 - 2⁷ = 212372569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212372617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35395447 + ... + 35395452.

It is an arithmetic number, because the mean of its divisors is an integer number (70790900).

Almost surely, 2^212372697 is an apocalyptic number.

It is an amenable number.

212372697 is a deficient number, since it is larger than the sum of its proper divisors (70790903).

212372697 is an equidigital number, since it uses as much as digits as its factorization.

212372697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70790902.

The product of its digits is 63504, while the sum is 39.

The square root of 212372697 is about 14573.0126260839. The cubic root of 212372697 is about 596.6224082454.

The spelling of 212372697 in words is "two hundred twelve million, three hundred seventy-two thousand, six hundred ninety-seven".