283098989 has 2 divisors, whose sum is σ = 283098990. Its totient is φ = 283098988.

The previous prime is 283098983. The next prime is 283098997. The reversal of 283098989 is 989890382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 254562025 + 28536964 = 15955^2 + 5342^2 .

It is a cyclic number.

It is not a de Polignac number, because 283098989 - 2⁸ = 283098733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (283098983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141549494 + 141549495.

It is an arithmetic number, because the mean of its divisors is an integer number (141549495).

Almost surely, 2^283098989 is an apocalyptic number.

It is an amenable number.

283098989 is a deficient number, since it is larger than the sum of its proper divisors (1).

283098989 is an equidigital number, since it uses as much as digits as its factorization.

283098989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2239488, while the sum is 56.

The square root of 283098989 is about 16825.5457266622. The cubic root of 283098989 is about 656.6179831407.

The spelling of 283098989 in words is "two hundred eighty-three million, ninety-eight thousand, nine hundred eighty-nine".