214318387 has 4 divisors (see below), whose sum is σ = 215279680. Its totient is φ = 213357096.

The previous prime is 214318373. The next prime is 214318409. The reversal of 214318387 is 783813412.

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 214318387 - 2⁷ = 214318259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214318187) 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, 480312 + ... + 480757.

It is an arithmetic number, because the mean of its divisors is an integer number (53819920).

Almost surely, 2^214318387 is an apocalyptic number.

214318387 is a deficient number, since it is larger than the sum of its proper divisors (961293).

214318387 is an equidigital number, since it uses as much as digits as its factorization.

214318387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961292.

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

The square root of 214318387 is about 14639.6170373408. The cubic root of 214318387 is about 598.4388926886.

The spelling of 214318387 in words is "two hundred fourteen million, three hundred eighteen thousand, three hundred eighty-seven".