985700671 has 2 divisors, whose sum is σ = 985700672. Its totient is φ = 985700670.

The previous prime is 985700657. The next prime is 985700693. The reversal of 985700671 is 176007589.

It is a weak prime.

It is an emirp because it is prime and its reverse (176007589) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 985700671 - 2²⁷ = 851482943 is a prime.

It is a super-3 number, since 3×985700671³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (985700621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492850335 + 492850336.

It is an arithmetic number, because the mean of its divisors is an integer number (492850336).

Almost surely, 2^985700671 is an apocalyptic number.

985700671 is a deficient number, since it is larger than the sum of its proper divisors (1).

985700671 is an equidigital number, since it uses as much as digits as its factorization.

985700671 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 43.

The square root of 985700671 is about 31395.8702857557. The cubic root of 985700671 is about 995.2106558012.

The spelling of 985700671 in words is "nine hundred eighty-five million, seven hundred thousand, six hundred seventy-one".