85283089 has 2 divisors, whose sum is σ = 85283090. Its totient is φ = 85283088.

The previous prime is 85283083. The next prime is 85283111. The reversal of 85283089 is 98038258.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51840000 + 33443089 = 7200^2 + 5783^2 .

It is a cyclic number.

It is not a de Polignac number, because 85283089 - 2⁷ = 85282961 is a prime.

It is not a weakly prime, because it can be changed into another prime (85283083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42641544 + 42641545.

It is an arithmetic number, because the mean of its divisors is an integer number (42641545).

Almost surely, 2^85283089 is an apocalyptic number.

It is an amenable number.

85283089 is a deficient number, since it is larger than the sum of its proper divisors (1).

85283089 is an equidigital number, since it uses as much as digits as its factorization.

85283089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 85283089 is about 9234.8843522808. The cubic root of 85283089 is about 440.1705416728.

The spelling of 85283089 in words is "eighty-five million, two hundred eighty-three thousand, eighty-nine".