85494397 has 2 divisors, whose sum is σ = 85494398. Its totient is φ = 85494396.

The previous prime is 85494361. The next prime is 85494413. The reversal of 85494397 is 79349458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74063236 + 11431161 = 8606^2 + 3381^2 .

It is a cyclic number.

It is not a de Polignac number, because 85494397 - 2¹¹ = 85492349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85494397.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85494317) 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, 42747198 + 42747199.

It is an arithmetic number, because the mean of its divisors is an integer number (42747199).

Almost surely, 2^85494397 is an apocalyptic number.

It is an amenable number.

85494397 is a deficient number, since it is larger than the sum of its proper divisors (1).

85494397 is an equidigital number, since it uses as much as digits as its factorization.

85494397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 85494397 is about 9246.3180239488. The cubic root of 85494397 is about 440.5337822811.

The spelling of 85494397 in words is "eighty-five million, four hundred ninety-four thousand, three hundred ninety-seven".