85984061 has 2 divisors, whose sum is σ = 85984062. Its totient is φ = 85984060.

The previous prime is 85984039. The next prime is 85984121. The reversal of 85984061 is 16048958.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56715961 + 29268100 = 7531^2 + 5410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85984061 is a prime.

It is equal to p_4997615 and since 85984061 and 4997615 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85984021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42992030 + 42992031.

It is an arithmetic number, because the mean of its divisors is an integer number (42992031).

Almost surely, 2^85984061 is an apocalyptic number.

It is an amenable number.

85984061 is a deficient number, since it is larger than the sum of its proper divisors (1).

85984061 is an equidigital number, since it uses as much as digits as its factorization.

85984061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 41.

The square root of 85984061 is about 9272.7590823875. The cubic root of 85984061 is about 441.3732252473.

The spelling of 85984061 in words is "eighty-five million, nine hundred eighty-four thousand, sixty-one".