228007 has 4 divisors (see below), whose sum is σ = 245560. Its totient is φ = 210456.

The previous prime is 227993. The next prime is 228013. The reversal of 228007 is 700822.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 700822 = 2 ⋅350411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228007 is a prime.

It is the 478-th Hogben number.

It is a Duffinian number.

228007 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228077) by changing a digit.

It is a nontrivial repunit in base 477.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8757 + ... + 8782.

It is an arithmetic number, because the mean of its divisors is an integer number (61390).

2²²⁸⁰⁰⁷ is an apocalyptic number.

228007 is a deficient number, since it is larger than the sum of its proper divisors (17553).

228007 is a wasteful number, since it uses less digits than its factorization.

228007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17552.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 228007 is about 477.5007853397. The cubic root of 228007 is about 61.0917726383.

Adding to 228007 its reverse (700822), we get a palindrome (928829).

The spelling of 228007 in words is "two hundred twenty-eight thousand, seven".