284488969 has 2 divisors, whose sum is σ = 284488970. Its totient is φ = 284488968.

The previous prime is 284488871. The next prime is 284488993. The reversal of 284488969 is 969884482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 204833344 + 79655625 = 14312^2 + 8925^2 .

It is a cyclic number.

It is not a de Polignac number, because 284488969 - 2¹⁷ = 284357897 is a prime.

It is a super-2 number, since 2×284488969² = 161867946965365922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (284488669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142244484 + 142244485.

It is an arithmetic number, because the mean of its divisors is an integer number (142244485).

Almost surely, 2^284488969 is an apocalyptic number.

It is an amenable number.

284488969 is a deficient number, since it is larger than the sum of its proper divisors (1).

284488969 is an equidigital number, since it uses as much as digits as its factorization.

284488969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7962624, while the sum is 58.

The square root of 284488969 is about 16866.8007932743. The cubic root of 284488969 is about 657.6908660509.

The spelling of 284488969 in words is "two hundred eighty-four million, four hundred eighty-eight thousand, nine hundred sixty-nine".