85993693 has 2 divisors, whose sum is σ = 85993694. Its totient is φ = 85993692.

The previous prime is 85993673. The next prime is 85993703. The reversal of 85993693 is 39639958.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75116889 + 10876804 = 8667^2 + 3298^2 .

It is a cyclic number.

It is not a de Polignac number, because 85993693 - 2⁹ = 85993181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85993693.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85993603) 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, 42996846 + 42996847.

It is an arithmetic number, because the mean of its divisors is an integer number (42996847).

Almost surely, 2^85993693 is an apocalyptic number.

It is an amenable number.

85993693 is a deficient number, since it is larger than the sum of its proper divisors (1).

85993693 is an equidigital number, since it uses as much as digits as its factorization.

85993693 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1574640, while the sum is 52.

The square root of 85993693 is about 9273.2784386106. The cubic root of 85993693 is about 441.3897056202.

The spelling of 85993693 in words is "eighty-five million, nine hundred ninety-three thousand, six hundred ninety-three".