212916017 has 4 divisors (see below), whose sum is σ = 216093936. Its totient is φ = 209738100.

The previous prime is 212916001. The next prime is 212916023. The reversal of 212916017 is 710619212.

212916017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212916017 - 2⁴ = 212916001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212916617) 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, 1588859 + ... + 1588992.

It is an arithmetic number, because the mean of its divisors is an integer number (54023484).

Almost surely, 2^212916017 is an apocalyptic number.

It is an amenable number.

212916017 is a deficient number, since it is larger than the sum of its proper divisors (3177919).

212916017 is an equidigital number, since it uses as much as digits as its factorization.

212916017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3177918.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 212916017 is about 14591.6420254884. The cubic root of 212916017 is about 597.1307611708.

The spelling of 212916017 in words is "two hundred twelve million, nine hundred sixteen thousand, seventeen".