212287079 has 8 divisors (see below), whose sum is σ = 222931680. Its totient is φ = 201760416.

The previous prime is 212287067. The next prime is 212287081. The reversal of 212287079 is 970782212.

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

It is not a de Polignac number, because 212287079 - 2⁴ = 212287063 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 (212287379) 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, 25784 + ... + 33005.

It is an arithmetic number, because the mean of its divisors is an integer number (27866460).

Almost surely, 2^212287079 is an apocalyptic number.

212287079 is a deficient number, since it is larger than the sum of its proper divisors (10644601).

212287079 is a wasteful number, since it uses less digits than its factorization.

212287079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58969.

The product of its (nonzero) digits is 28224, while the sum is 38.

The square root of 212287079 is about 14570.0747767470. The cubic root of 212287079 is about 596.5422214102.

The spelling of 212287079 in words is "two hundred twelve million, two hundred eighty-seven thousand, seventy-nine".