83706061 has 2 divisors, whose sum is σ = 83706062. Its totient is φ = 83706060.

The previous prime is 83706059. The next prime is 83706067. The reversal of 83706061 is 16060738.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66015625 + 17690436 = 8125^2 + 4206^2 .

It is a cyclic number.

It is not a de Polignac number, because 83706061 - 2¹ = 83706059 is a prime.

Together with 83706059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83706067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41853030 + 41853031.

It is an arithmetic number, because the mean of its divisors is an integer number (41853031).

Almost surely, 2^83706061 is an apocalyptic number.

It is an amenable number.

83706061 is a deficient number, since it is larger than the sum of its proper divisors (1).

83706061 is an equidigital number, since it uses as much as digits as its factorization.

83706061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 83706061 is about 9149.1016498889. The cubic root of 83706061 is about 437.4404790864.

Adding to 83706061 its reverse (16060738), we get a palindrome (99766799).

The spelling of 83706061 in words is "eighty-three million, seven hundred six thousand, sixty-one".