83600861 has 2 divisors, whose sum is σ = 83600862. Its totient is φ = 83600860.

The previous prime is 83600833. The next prime is 83600873. The reversal of 83600861 is 16800638.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78676900 + 4923961 = 8870^2 + 2219^2 .

It is a cyclic number.

It is not a de Polignac number, because 83600861 - 2²⁶ = 16491997 is a prime.

It is a Chen prime.

It is equal to p_4867133 and since 83600861 and 4867133 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 (83690861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41800430 + 41800431.

It is an arithmetic number, because the mean of its divisors is an integer number (41800431).

Almost surely, 2^83600861 is an apocalyptic number.

It is an amenable number.

83600861 is a deficient number, since it is larger than the sum of its proper divisors (1).

83600861 is an equidigital number, since it uses as much as digits as its factorization.

83600861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 83600861 is about 9143.3506440473. The cubic root of 83600861 is about 437.2571469605.

The spelling of 83600861 in words is "eighty-three million, six hundred thousand, eight hundred sixty-one".