212002347 has 4 divisors (see below), whose sum is σ = 282669800. Its totient is φ = 141334896.

The previous prime is 212002313. The next prime is 212002363. The reversal of 212002347 is 743200212.

212002347 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.

It is not a de Polignac number, because 212002347 - 2⁶ = 212002283 is a prime.

It is a super-3 number, since 3×212002347³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212002387) 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, 35333722 + ... + 35333727.

It is an arithmetic number, because the mean of its divisors is an integer number (70667450).

Almost surely, 2^212002347 is an apocalyptic number.

212002347 is a deficient number, since it is larger than the sum of its proper divisors (70667453).

212002347 is an equidigital number, since it uses as much as digits as its factorization.

212002347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70667452.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 212002347 is about 14560.3003746489. The cubic root of 212002347 is about 596.2753961643.

Adding to 212002347 its reverse (743200212), we get a palindrome (955202559).

The spelling of 212002347 in words is "two hundred twelve million, two thousand, three hundred forty-seven".