85478299 has 2 divisors, whose sum is σ = 85478300. Its totient is φ = 85478298.

The previous prime is 85478293. The next prime is 85478333. The reversal of 85478299 is 99287458.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85478299 - 2³ = 85478291 is a prime.

It is not a weakly prime, because it can be changed into another prime (85478291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42739149 + 42739150.

It is an arithmetic number, because the mean of its divisors is an integer number (42739150).

Almost surely, 2^85478299 is an apocalyptic number.

85478299 is a deficient number, since it is larger than the sum of its proper divisors (1).

85478299 is an equidigital number, since it uses as much as digits as its factorization.

85478299 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 52.

The square root of 85478299 is about 9245.4474742978. The cubic root of 85478299 is about 440.5061307303.

The spelling of 85478299 in words is "eighty-five million, four hundred seventy-eight thousand, two hundred ninety-nine".