83928379 has 2 divisors, whose sum is σ = 83928380. Its totient is φ = 83928378.

The previous prime is 83928359. The next prime is 83928391. The reversal of 83928379 is 97382938.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83928379 - 2⁵ = 83928347 is a prime.

It is not a weakly prime, because it can be changed into another prime (83928329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41964189 + 41964190.

It is an arithmetic number, because the mean of its divisors is an integer number (41964190).

Almost surely, 2^83928379 is an apocalyptic number.

83928379 is a deficient number, since it is larger than the sum of its proper divisors (1).

83928379 is an equidigital number, since it uses as much as digits as its factorization.

83928379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 49.

The square root of 83928379 is about 9161.2433108176. The cubic root of 83928379 is about 437.8274081437.

The spelling of 83928379 in words is "eighty-three million, nine hundred twenty-eight thousand, three hundred seventy-nine".