83425399 has 2 divisors, whose sum is σ = 83425400. Its totient is φ = 83425398.

The previous prime is 83425367. The next prime is 83425403. The reversal of 83425399 is 99352438.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83425399 - 2⁵ = 83425367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83425099) 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, 41712699 + 41712700.

It is an arithmetic number, because the mean of its divisors is an integer number (41712700).

Almost surely, 2^83425399 is an apocalyptic number.

83425399 is a deficient number, since it is larger than the sum of its proper divisors (1).

83425399 is an equidigital number, since it uses as much as digits as its factorization.

83425399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 43.

The square root of 83425399 is about 9133.7505439989. The cubic root of 83425399 is about 436.9510267039.

The spelling of 83425399 in words is "eighty-three million, four hundred twenty-five thousand, three hundred ninety-nine".