83308457 has 2 divisors, whose sum is σ = 83308458. Its totient is φ = 83308456.

The previous prime is 83308427. The next prime is 83308481. The reversal of 83308457 is 75480338.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82011136 + 1297321 = 9056^2 + 1139^2 .

It is a cyclic number.

It is not a de Polignac number, because 83308457 - 2¹⁴ = 83292073 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83308457.

It is not a weakly prime, because it can be changed into another prime (83308417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41654228 + 41654229.

It is an arithmetic number, because the mean of its divisors is an integer number (41654229).

Almost surely, 2^83308457 is an apocalyptic number.

It is an amenable number.

83308457 is a deficient number, since it is larger than the sum of its proper divisors (1).

83308457 is an equidigital number, since it uses as much as digits as its factorization.

83308457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 83308457 is about 9127.3466571617. The cubic root of 83308457 is about 436.7467650850.

The spelling of 83308457 in words is "eighty-three million, three hundred eight thousand, four hundred fifty-seven".