85494469 has 2 divisors, whose sum is σ = 85494470. Its totient is φ = 85494468.

The previous prime is 85494467. The next prime is 85494491. The reversal of 85494469 is 96449458.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63760225 + 21734244 = 7985^2 + 4662^2 .

It is a cyclic number.

It is not a de Polignac number, because 85494469 - 2¹ = 85494467 is a prime.

It is a super-2 number, since 2×85494469² = 14618608459183922, which contains 22 as substring.

Together with 85494467, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85494463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42747234 + 42747235.

It is an arithmetic number, because the mean of its divisors is an integer number (42747235).

Almost surely, 2^85494469 is an apocalyptic number.

It is an amenable number.

85494469 is a deficient number, since it is larger than the sum of its proper divisors (1).

85494469 is an equidigital number, since it uses as much as digits as its factorization.

85494469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 49.

The square root of 85494469 is about 9246.3219173896. The cubic root of 85494469 is about 440.5339059478.

The spelling of 85494469 in words is "eighty-five million, four hundred ninety-four thousand, four hundred sixty-nine".