85676971 has 2 divisors, whose sum is σ = 85676972. Its totient is φ = 85676970.

The previous prime is 85676917. The next prime is 85676977. The reversal of 85676971 is 17967658.

Together with previous prime (85676917) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85676971 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (85676977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42838485 + 42838486.

It is an arithmetic number, because the mean of its divisors is an integer number (42838486).

Almost surely, 2^85676971 is an apocalyptic number.

85676971 is a deficient number, since it is larger than the sum of its proper divisors (1).

85676971 is an equidigital number, since it uses as much as digits as its factorization.

85676971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 49.

The square root of 85676971 is about 9256.1855534556. The cubic root of 85676971 is about 440.8471471815.

The spelling of 85676971 in words is "eighty-five million, six hundred seventy-six thousand, nine hundred seventy-one".