83490773 has 2 divisors, whose sum is σ = 83490774. Its totient is φ = 83490772.

The previous prime is 83490721. The next prime is 83490829. The reversal of 83490773 is 37709438.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81306289 + 2184484 = 9017^2 + 1478^2 .

It is a cyclic number.

It is not a de Polignac number, because 83490773 - 2¹⁴ = 83474389 is a prime.

It is a super-2 number, since 2×83490773² = 13941418352275058, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83490773.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83490973) 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, 41745386 + 41745387.

It is an arithmetic number, because the mean of its divisors is an integer number (41745387).

Almost surely, 2^83490773 is an apocalyptic number.

It is an amenable number.

83490773 is a deficient number, since it is larger than the sum of its proper divisors (1).

83490773 is an equidigital number, since it uses as much as digits as its factorization.

83490773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 41.

The square root of 83490773 is about 9137.3285483231. The cubic root of 83490773 is about 437.0651317548.

The spelling of 83490773 in words is "eighty-three million, four hundred ninety thousand, seven hundred seventy-three".