83576861 has 2 divisors, whose sum is σ = 83576862. Its totient is φ = 83576860.

The previous prime is 83576851. The next prime is 83576873. The reversal of 83576861 is 16867538.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83356900 + 219961 = 9130^2 + 469^2 .

It is a cyclic number.

It is not a de Polignac number, because 83576861 - 2¹⁰ = 83575837 is a prime.

It is a super-2 number, since 2×83576861² = 13970183389226642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83576851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41788430 + 41788431.

It is an arithmetic number, because the mean of its divisors is an integer number (41788431).

Almost surely, 2^83576861 is an apocalyptic number.

It is an amenable number.

83576861 is a deficient number, since it is larger than the sum of its proper divisors (1).

83576861 is an equidigital number, since it uses as much as digits as its factorization.

83576861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 44.

The square root of 83576861 is about 9142.0381206818. The cubic root of 83576861 is about 437.2153005976.

The spelling of 83576861 in words is "eighty-three million, five hundred seventy-six thousand, eight hundred sixty-one".