212386870 has 8 divisors (see below), whose sum is σ = 382296384. Its totient is φ = 84954744.

The previous prime is 212386819. The next prime is 212386873. The reversal of 212386870 is 78683212.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212386873) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10619334 + ... + 10619353.

It is an arithmetic number, because the mean of its divisors is an integer number (47787048).

Almost surely, 2^212386870 is an apocalyptic number.

212386870 is a deficient number, since it is larger than the sum of its proper divisors (169909514).

212386870 is a wasteful number, since it uses less digits than its factorization.

212386870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21238694.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 212386870 is about 14573.4988935396. The cubic root of 212386870 is about 596.6356801042.

The spelling of 212386870 in words is "two hundred twelve million, three hundred eighty-six thousand, eight hundred seventy".