878304379 has 2 divisors, whose sum is σ = 878304380. Its totient is φ = 878304378.

The previous prime is 878304359. The next prime is 878304389. The reversal of 878304379 is 973403878.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-878304379 is a prime.

It is not a weakly prime, because it can be changed into another prime (878304319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439152189 + 439152190.

It is an arithmetic number, because the mean of its divisors is an integer number (439152190).

Almost surely, 2^878304379 is an apocalyptic number.

878304379 is a deficient number, since it is larger than the sum of its proper divisors (1).

878304379 is an equidigital number, since it uses as much as digits as its factorization.

878304379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1016064, while the sum is 49.

The square root of 878304379 is about 29636.2004818431. The cubic root of 878304379 is about 957.6680883907.

The spelling of 878304379 in words is "eight hundred seventy-eight million, three hundred four thousand, three hundred seventy-nine".