212678985 has 8 divisors (see below), whose sum is σ = 340286400. Its totient is φ = 113428784.

The previous prime is 212678969. The next prime is 212679007. The reversal of 212678985 is 589876212.

212678985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 212678985 - 2⁴ = 212678969 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7089285 + ... + 7089314.

It is an arithmetic number, because the mean of its divisors is an integer number (42535800).

Almost surely, 2^212678985 is an apocalyptic number.

It is an amenable number.

212678985 is a deficient number, since it is larger than the sum of its proper divisors (127607415).

212678985 is a wasteful number, since it uses less digits than its factorization.

212678985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14178607.

The product of its digits is 483840, while the sum is 48.

The square root of 212678985 is about 14583.5175797885. The cubic root of 212678985 is about 596.9090905851.

The spelling of 212678985 in words is "two hundred twelve million, six hundred seventy-eight thousand, nine hundred eighty-five".