212378093 has 8 divisors (see below), whose sum is σ = 225705600. Its totient is φ = 199143360.

The previous prime is 212378063. The next prime is 212378099. The reversal of 212378093 is 390873212.

212378093 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 a de Polignac number, because none of the positive numbers 2^k-212378093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212378099) 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, 18443 + ... + 27656.

It is an arithmetic number, because the mean of its divisors is an integer number (28213200).

Almost surely, 2^212378093 is an apocalyptic number.

It is an amenable number.

212378093 is a deficient number, since it is larger than the sum of its proper divisors (13327507).

212378093 is a wasteful number, since it uses less digits than its factorization.

212378093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46387.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 212378093 is about 14573.1977616445. The cubic root of 212378093 is about 596.6274612290.

The spelling of 212378093 in words is "two hundred twelve million, three hundred seventy-eight thousand, ninety-three".