284354321 has 2 divisors, whose sum is σ = 284354322. Its totient is φ = 284354320.

The previous prime is 284354281. The next prime is 284354327. The reversal of 284354321 is 123453482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 269616400 + 14737921 = 16420^2 + 3839^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-284354321 is a prime.

It is not a weakly prime, because it can be changed into another prime (284354327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142177160 + 142177161.

It is an arithmetic number, because the mean of its divisors is an integer number (142177161).

Almost surely, 2^284354321 is an apocalyptic number.

It is an amenable number.

284354321 is a deficient number, since it is larger than the sum of its proper divisors (1).

284354321 is an equidigital number, since it uses as much as digits as its factorization.

284354321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 32.

The square root of 284354321 is about 16862.8088111085. The cubic root of 284354321 is about 657.5870884657.

The spelling of 284354321 in words is "two hundred eighty-four million, three hundred fifty-four thousand, three hundred twenty-one".