83354779 has 2 divisors, whose sum is σ = 83354780. Its totient is φ = 83354778.

The previous prime is 83354771. The next prime is 83354801. The reversal of 83354779 is 97745338.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 83354779 - 2³ = 83354771 is a prime.

It is not a weakly prime, because it can be changed into another prime (83354771) 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, 41677389 + 41677390.

It is an arithmetic number, because the mean of its divisors is an integer number (41677390).

Almost surely, 2^83354779 is an apocalyptic number.

83354779 is a deficient number, since it is larger than the sum of its proper divisors (1).

83354779 is an equidigital number, since it uses as much as digits as its factorization.

83354779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 635040, while the sum is 46.

The square root of 83354779 is about 9129.8838437299. The cubic root of 83354779 is about 436.8276981853.

The spelling of 83354779 in words is "eighty-three million, three hundred fifty-four thousand, seven hundred seventy-nine".