214528007 has 4 divisors (see below), whose sum is σ = 215490240. Its totient is φ = 213565776.

The previous prime is 214527997. The next prime is 214528021. The reversal of 214528007 is 700825412.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-214528007 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 (214528057) 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, 480782 + ... + 481227.

It is an arithmetic number, because the mean of its divisors is an integer number (53872560).

Almost surely, 2^214528007 is an apocalyptic number.

214528007 is a deficient number, since it is larger than the sum of its proper divisors (962233).

214528007 is an equidigital number, since it uses as much as digits as its factorization.

214528007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962232.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 214528007 is about 14646.7746278831. The cubic root of 214528007 is about 598.6339356593.

The spelling of 214528007 in words is "two hundred fourteen million, five hundred twenty-eight thousand, seven".