878724299 has 2 divisors, whose sum is σ = 878724300. Its totient is φ = 878724298.

The previous prime is 878724247. The next prime is 878724311. The reversal of 878724299 is 992427878.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-878724299 is a prime.

It is not a weakly prime, because it can be changed into another prime (878724199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439362149 + 439362150.

It is an arithmetic number, because the mean of its divisors is an integer number (439362150).

Almost surely, 2^878724299 is an apocalyptic number.

878724299 is a deficient number, since it is larger than the sum of its proper divisors (1).

878724299 is an equidigital number, since it uses as much as digits as its factorization.

878724299 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4064256, while the sum is 56.

The square root of 878724299 is about 29643.2842141352. The cubic root of 878724299 is about 957.8206854180.

The spelling of 878724299 in words is "eight hundred seventy-eight million, seven hundred twenty-four thousand, two hundred ninety-nine".