214640873 has 4 divisors (see below), whose sum is σ = 214672260. Its totient is φ = 214609488.

The previous prime is 214640849. The next prime is 214640887. The reversal of 214640873 is 378046412.

214640873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 160073104 + 54567769 = 12652^2 + 7387^2 .

It is a cyclic number.

It is not a de Polignac number, because 214640873 - 2⁶ = 214640809 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (214640843) 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, 590 + ... + 20727.

It is an arithmetic number, because the mean of its divisors is an integer number (53668065).

Almost surely, 2^214640873 is an apocalyptic number.

It is an amenable number.

214640873 is a deficient number, since it is larger than the sum of its proper divisors (31387).

214640873 is a wasteful number, since it uses less digits than its factorization.

214640873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31386.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 214640873 is about 14650.6270514268. The cubic root of 214640873 is about 598.7389003104.

The spelling of 214640873 in words is "two hundred fourteen million, six hundred forty thousand, eight hundred seventy-three".