83178379 has 2 divisors, whose sum is σ = 83178380. Its totient is φ = 83178378.

The previous prime is 83178349. The next prime is 83178397. The reversal of 83178379 is 97387138.

It is a happy number.

Together with next prime (83178397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 83178379 - 2¹⁵ = 83145611 is a prime.

It is not a weakly prime, because it can be changed into another prime (83178349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41589189 + 41589190.

It is an arithmetic number, because the mean of its divisors is an integer number (41589190).

Almost surely, 2^83178379 is an apocalyptic number.

83178379 is a deficient number, since it is larger than the sum of its proper divisors (1).

83178379 is an equidigital number, since it uses as much as digits as its factorization.

83178379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 46.

The square root of 83178379 is about 9120.2181443209. The cubic root of 83178379 is about 436.5193342343.

The spelling of 83178379 in words is "eighty-three million, one hundred seventy-eight thousand, three hundred seventy-nine".