85689767 has 2 divisors, whose sum is σ = 85689768. Its totient is φ = 85689766.

The previous prime is 85689761. The next prime is 85689803. The reversal of 85689767 is 76798658.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85689767 - 2¹² = 85685671 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85689761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42844883 + 42844884.

It is an arithmetic number, because the mean of its divisors is an integer number (42844884).

Almost surely, 2^85689767 is an apocalyptic number.

85689767 is a deficient number, since it is larger than the sum of its proper divisors (1).

85689767 is an equidigital number, since it uses as much as digits as its factorization.

85689767 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5080320, while the sum is 56.

The square root of 85689767 is about 9256.8767411044. The cubic root of 85689767 is about 440.8690931771.

The spelling of 85689767 in words is "eighty-five million, six hundred eighty-nine thousand, seven hundred sixty-seven".