85620893 has 2 divisors, whose sum is σ = 85620894. Its totient is φ = 85620892.

The previous prime is 85620883. The next prime is 85620901. The reversal of 85620893 is 39802658.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76965529 + 8655364 = 8773^2 + 2942^2 .

It is a cyclic number.

It is not a de Polignac number, because 85620893 - 2⁴ = 85620877 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 85620893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85620863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42810446 + 42810447.

It is an arithmetic number, because the mean of its divisors is an integer number (42810447).

Almost surely, 2^85620893 is an apocalyptic number.

It is an amenable number.

85620893 is a deficient number, since it is larger than the sum of its proper divisors (1).

85620893 is an equidigital number, since it uses as much as digits as its factorization.

85620893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 85620893 is about 9253.1558400364. The cubic root of 85620893 is about 440.7509438817.

The spelling of 85620893 in words is "eighty-five million, six hundred twenty thousand, eight hundred ninety-three".