841428979 has 2 divisors, whose sum is σ = 841428980. Its totient is φ = 841428978.

The previous prime is 841428971. The next prime is 841429009. The reversal of 841428979 is 979824148.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 841428979 - 2³ = 841428971 is a prime.

It is not a weakly prime, because it can be changed into another prime (841428971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 420714489 + 420714490.

It is an arithmetic number, because the mean of its divisors is an integer number (420714490).

Almost surely, 2^841428979 is an apocalyptic number.

841428979 is a deficient number, since it is larger than the sum of its proper divisors (1).

841428979 is an equidigital number, since it uses as much as digits as its factorization.

841428979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1161216, while the sum is 52.

The square root of 841428979 is about 29007.3952467298. The cubic root of 841428979 is about 944.0735314951.

The spelling of 841428979 in words is "eight hundred forty-one million, four hundred twenty-eight thousand, nine hundred seventy-nine".