83427061 has 2 divisors, whose sum is σ = 83427062. Its totient is φ = 83427060.

The previous prime is 83427031. The next prime is 83427103. The reversal of 83427061 is 16072438.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 63123025 + 20304036 = 7945^2 + 4506^2 .

It is a cyclic number.

It is not a de Polignac number, because 83427061 - 2¹³ = 83418869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83427031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41713530 + 41713531.

It is an arithmetic number, because the mean of its divisors is an integer number (41713531).

Almost surely, 2^83427061 is an apocalyptic number.

It is an amenable number.

83427061 is a deficient number, since it is larger than the sum of its proper divisors (1).

83427061 is an equidigital number, since it uses as much as digits as its factorization.

83427061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 83427061 is about 9133.8415247912. The cubic root of 83427061 is about 436.9539283293.

Adding to 83427061 its reverse (16072438), we get a palindrome (99499499).

The spelling of 83427061 in words is "eighty-three million, four hundred twenty-seven thousand, sixty-one".