212320678 has 8 divisors (see below), whose sum is σ = 319276440. Its totient is φ = 105895200.

The previous prime is 212320657. The next prime is 212320699. The reversal of 212320678 is 876023212.

212320678 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212320657) and next prime (212320699).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131568 + ... + 133171.

It is an arithmetic number, because the mean of its divisors is an integer number (39909555).

Almost surely, 2^212320678 is an apocalyptic number.

212320678 is a deficient number, since it is larger than the sum of its proper divisors (106955762).

212320678 is a wasteful number, since it uses less digits than its factorization.

212320678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265142.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 212320678 is about 14571.2277451147. The cubic root of 212320678 is about 596.5736916326.

It can be divided in two parts, 2123 and 20678, that added together give a square (22801 = 151²).

The spelling of 212320678 in words is "two hundred twelve million, three hundred twenty thousand, six hundred seventy-eight".