85890611 has 2 divisors, whose sum is σ = 85890612. Its totient is φ = 85890610.

The previous prime is 85890593. The next prime is 85890619. The reversal of 85890611 is 11609858.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 85890611 - 2¹⁴ = 85874227 is a prime.

It is not a weakly prime, because it can be changed into another prime (85890619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42945305 + 42945306.

It is an arithmetic number, because the mean of its divisors is an integer number (42945306).

Almost surely, 2^85890611 is an apocalyptic number.

85890611 is a deficient number, since it is larger than the sum of its proper divisors (1).

85890611 is an equidigital number, since it uses as much as digits as its factorization.

85890611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 85890611 is about 9267.7187592201. The cubic root of 85890611 is about 441.2132681614.

The spelling of 85890611 in words is "eighty-five million, eight hundred ninety thousand, six hundred eleven".