284421007 has 16 divisors (see below), whose sum is σ = 310722048. Its totient is φ = 258778080.

The previous prime is 284420993. The next prime is 284421041. The reversal of 284421007 is 700124482.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-284421007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284421077) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416088 + ... + 416770.

It is an arithmetic number, because the mean of its divisors is an integer number (19420128).

Almost surely, 2^284421007 is an apocalyptic number.

284421007 is a deficient number, since it is larger than the sum of its proper divisors (26301041).

284421007 is a wasteful number, since it uses less digits than its factorization.

284421007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110.

The product of its (nonzero) digits is 3584, while the sum is 28.

The square root of 284421007 is about 16864.7860051647. The cubic root of 284421007 is about 657.6384896248.

Adding to 284421007 its reverse (700124482), we get a palindrome (984545489).

The spelling of 284421007 in words is "two hundred eighty-four million, four hundred twenty-one thousand, seven".