214878379 has 4 divisors (see below), whose sum is σ = 215357400. Its totient is φ = 214399360.

The previous prime is 214878361. The next prime is 214878403. The reversal of 214878379 is 973878412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 214878379 - 2¹⁵ = 214845611 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214878319) 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, 238837 + ... + 239734.

It is an arithmetic number, because the mean of its divisors is an integer number (53839350).

Almost surely, 2^214878379 is an apocalyptic number.

214878379 is a deficient number, since it is larger than the sum of its proper divisors (479021).

214878379 is an equidigital number, since it uses as much as digits as its factorization.

214878379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479020.

The product of its digits is 677376, while the sum is 49.

The square root of 214878379 is about 14658.7304702692. The cubic root of 214878379 is about 598.9596592314.

The spelling of 214878379 in words is "two hundred fourteen million, eight hundred seventy-eight thousand, three hundred seventy-nine".