319408379 has 2 divisors, whose sum is σ = 319408380. Its totient is φ = 319408378.

The previous prime is 319408367. The next prime is 319408391. The reversal of 319408379 is 973804913.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (319408367) and next prime (319408391).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-319408379 is a prime.

It is not a weakly prime, because it can be changed into another prime (319408279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 159704189 + 159704190.

It is an arithmetic number, because the mean of its divisors is an integer number (159704190).

Almost surely, 2^319408379 is an apocalyptic number.

319408379 is a deficient number, since it is larger than the sum of its proper divisors (1).

319408379 is an equidigital number, since it uses as much as digits as its factorization.

319408379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 319408379 is about 17871.9998601164. Note that the first 3 decimals coincide. The cubic root of 319408379 is about 683.5685945970.

The spelling of 319408379 in words is "three hundred nineteen million, four hundred eight thousand, three hundred seventy-nine".