212750447 has 16 divisors (see below), whose sum is σ = 262843392. Its totient is φ = 167689440.

The previous prime is 212750443. The next prime is 212750449. The reversal of 212750447 is 744057212.

It is a cyclic number.

It is not a de Polignac number, because 212750447 - 2² = 212750443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212750443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20348 + ... + 28974.

It is an arithmetic number, because the mean of its divisors is an integer number (16427712).

Almost surely, 2^212750447 is an apocalyptic number.

212750447 is a deficient number, since it is larger than the sum of its proper divisors (50092945).

212750447 is a wasteful number, since it uses less digits than its factorization.

212750447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8918.

The product of its (nonzero) digits is 15680, while the sum is 32.

The square root of 212750447 is about 14585.9674687694. The cubic root of 212750447 is about 596.9759386577.

The spelling of 212750447 in words is "two hundred twelve million, seven hundred fifty thousand, four hundred forty-seven".