879945019 has 2 divisors, whose sum is σ = 879945020. Its totient is φ = 879945018.

The previous prime is 879944987. The next prime is 879945029. The reversal of 879945019 is 910549978.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 879945019 - 2⁵ = 879944987 is a prime.

It is a super-2 number, since 2×879945019² = 1548606472925820722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (879945029) 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, 439972509 + 439972510.

It is an arithmetic number, because the mean of its divisors is an integer number (439972510).

Almost surely, 2^879945019 is an apocalyptic number.

879945019 is a deficient number, since it is larger than the sum of its proper divisors (1).

879945019 is an equidigital number, since it uses as much as digits as its factorization.

879945019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 52.

The square root of 879945019 is about 29663.8672293415. The cubic root of 879945019 is about 958.2640136442.

The spelling of 879945019 in words is "eight hundred seventy-nine million, nine hundred forty-five thousand, nineteen".