841219979 has 2 divisors, whose sum is σ = 841219980. Its totient is φ = 841219978.

The previous prime is 841219969. The next prime is 841219991. The reversal of 841219979 is 979912148.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 841219979 - 2²⁰ = 840171403 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (841219969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420609989 + 420609990.

It is an arithmetic number, because the mean of its divisors is an integer number (420609990).

Almost surely, 2^841219979 is an apocalyptic number.

841219979 is a deficient number, since it is larger than the sum of its proper divisors (1).

841219979 is an equidigital number, since it uses as much as digits as its factorization.

841219979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 50.

The square root of 841219979 is about 29003.7924933964. The cubic root of 841219979 is about 943.9953598325.

The spelling of 841219979 in words is "eight hundred forty-one million, two hundred nineteen thousand, nine hundred seventy-nine".