212974863 has 8 divisors (see below), whose sum is σ = 284114688. Its totient is φ = 141909144.

The previous prime is 212974859. The next prime is 212974873. The reversal of 212974863 is 368479212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212974863 - 2² = 212974859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212974873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11431 + ... + 23592.

It is an arithmetic number, because the mean of its divisors is an integer number (35514336).

Almost surely, 2^212974863 is an apocalyptic number.

212974863 is a deficient number, since it is larger than the sum of its proper divisors (71139825).

212974863 is a wasteful number, since it uses less digits than its factorization.

212974863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37053.

The product of its digits is 145152, while the sum is 42.

The square root of 212974863 is about 14593.6583144872. The cubic root of 212974863 is about 597.1857680236.

The spelling of 212974863 in words is "two hundred twelve million, nine hundred seventy-four thousand, eight hundred sixty-three".