85998097 has 2 divisors, whose sum is σ = 85998098. Its totient is φ = 85998096.

The previous prime is 85998071. The next prime is 85998113. The reversal of 85998097 is 79089958.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85951441 + 46656 = 9271^2 + 216^2 .

It is a cyclic number.

It is not a de Polignac number, because 85998097 - 2²³ = 77609489 is a prime.

It is not a weakly prime, because it can be changed into another prime (85998007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42999048 + 42999049.

It is an arithmetic number, because the mean of its divisors is an integer number (42999049).

Almost surely, 2^85998097 is an apocalyptic number.

It is an amenable number.

85998097 is a deficient number, since it is larger than the sum of its proper divisors (1).

85998097 is an equidigital number, since it uses as much as digits as its factorization.

85998097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1632960, while the sum is 55.

The square root of 85998097 is about 9273.5158920444. The cubic root of 85998097 is about 441.3972404638.

The spelling of 85998097 in words is "eighty-five million, nine hundred ninety-eight thousand, ninety-seven".