284347223 has 2 divisors, whose sum is σ = 284347224. Its totient is φ = 284347222.

The previous prime is 284347213. The next prime is 284347249. The reversal of 284347223 is 322743482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 284347223 - 2⁴ = 284347207 is a prime.

It is a super-4 number, since 4×284347223⁴ (a number of 35 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (284347213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142173611 + 142173612.

It is an arithmetic number, because the mean of its divisors is an integer number (142173612).

Almost surely, 2^284347223 is an apocalyptic number.

284347223 is a deficient number, since it is larger than the sum of its proper divisors (1).

284347223 is an equidigital number, since it uses as much as digits as its factorization.

284347223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 35.

The square root of 284347223 is about 16862.5983466369. The cubic root of 284347223 is about 657.5816168977.

The spelling of 284347223 in words is "two hundred eighty-four million, three hundred forty-seven thousand, two hundred twenty-three".