212065487 has 8 divisors (see below), whose sum is σ = 219542400. Its totient is φ = 204599584.

The previous prime is 212065471. The next prime is 212065493. The reversal of 212065487 is 784560212.

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

It is a cyclic number.

It is not a de Polignac number, because 212065487 - 2⁴ = 212065471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212065687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65378 + ... + 68544.

It is an arithmetic number, because the mean of its divisors is an integer number (27442800).

Almost surely, 2^212065487 is an apocalyptic number.

212065487 is a deficient number, since it is larger than the sum of its proper divisors (7476913).

212065487 is a wasteful number, since it uses less digits than its factorization.

212065487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5505.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 212065487 is about 14562.4684377340. The cubic root of 212065487 is about 596.3345859045.

The spelling of 212065487 in words is "two hundred twelve million, sixty-five thousand, four hundred eighty-seven".