214397 has 4 divisors (see below), whose sum is σ = 221820. Its totient is φ = 206976.

The previous prime is 214391. The next prime is 214399. The reversal of 214397 is 793412.

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

It can be written as a sum of positive squares in 2 ways, for example, as 70756 + 143641 = 266^2 + 379^2 .

It is a cyclic number.

It is not a de Polignac number, because 214397 - 2⁴ = 214381 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3668 + ... + 3725.

It is an arithmetic number, because the mean of its divisors is an integer number (55455).

2²¹⁴³⁹⁷ is an apocalyptic number.

214397 is the 248-th centered heptagonal number.

It is an amenable number.

214397 is a deficient number, since it is larger than the sum of its proper divisors (7423).

214397 is an equidigital number, since it uses as much as digits as its factorization.

214397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7422.

The product of its digits is 1512, while the sum is 26.

The square root of 214397 is about 463.0302365937. The cubic root of 214397 is about 59.8512053818.

The spelling of 214397 in words is "two hundred fourteen thousand, three hundred ninety-seven".