214607021 has 4 divisors (see below), whose sum is σ = 215159100. Its totient is φ = 214054944.

The previous prime is 214606981. The next prime is 214607051. The reversal of 214607021 is 120706412.

214607021 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.

It can be written as a sum of positive squares in 2 ways, for example, as 126810121 + 87796900 = 11261^2 + 9370^2 .

It is a cyclic number.

It is not a de Polignac number, because 214607021 - 2¹⁴ = 214590637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214607051) 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, 275456 + ... + 276233.

It is an arithmetic number, because the mean of its divisors is an integer number (53789775).

Almost surely, 2^214607021 is an apocalyptic number.

It is an amenable number.

214607021 is a deficient number, since it is larger than the sum of its proper divisors (552079).

214607021 is an equidigital number, since it uses as much as digits as its factorization.

214607021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552078.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 214607021 is about 14649.4716969589. The cubic root of 214607021 is about 598.7074220329.

The spelling of 214607021 in words is "two hundred fourteen million, six hundred seven thousand, twenty-one".