83977583 has 2 divisors, whose sum is σ = 83977584. Its totient is φ = 83977582.

The previous prime is 83977529. The next prime is 83977601. The reversal of 83977583 is 38577938.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83977583 - 2⁶ = 83977519 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83977183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41988791 + 41988792.

It is an arithmetic number, because the mean of its divisors is an integer number (41988792).

Almost surely, 2^83977583 is an apocalyptic number.

83977583 is a deficient number, since it is larger than the sum of its proper divisors (1).

83977583 is an equidigital number, since it uses as much as digits as its factorization.

83977583 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 50.

The square root of 83977583 is about 9163.9283606977. The cubic root of 83977583 is about 437.9129519193.

The spelling of 83977583 in words is "eighty-three million, nine hundred seventy-seven thousand, five hundred eighty-three".