214387 has 4 divisors (see below), whose sum is σ = 227016. Its totient is φ = 201760.

The previous prime is 214381. The next prime is 214391. The reversal of 214387 is 783412.

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 214387 - 2⁷ = 214259 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 1 + 3¹¹ + 4⁶ + 8⁵ + 7³ .

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (214381) 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, 6289 + ... + 6322.

It is an arithmetic number, because the mean of its divisors is an integer number (56754).

2²¹⁴³⁸⁷ is an apocalyptic number.

214387 is a deficient number, since it is larger than the sum of its proper divisors (12629).

214387 is a wasteful number, since it uses less digits than its factorization.

214387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12628.

The product of its digits is 1344, while the sum is 25.

The square root of 214387 is about 463.0194380369. The cubic root of 214387 is about 59.8502748318.

Adding to 214387 its sum of digits (25), we get a palindrome (214412).

Adding to 214387 its reverse (783412), we get a palindrome (997799).

The spelling of 214387 in words is "two hundred fourteen thousand, three hundred eighty-seven".