980684459 has 2 divisors, whose sum is σ = 980684460. Its totient is φ = 980684458.

The previous prime is 980684437. The next prime is 980684477. The reversal of 980684459 is 954486089.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (954486089) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-980684459 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 980684459.

It is not a weakly prime, because it can be changed into another prime (980684759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490342229 + 490342230.

It is an arithmetic number, because the mean of its divisors is an integer number (490342230).

Almost surely, 2^980684459 is an apocalyptic number.

980684459 is a deficient number, since it is larger than the sum of its proper divisors (1).

980684459 is an equidigital number, since it uses as much as digits as its factorization.

980684459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2488320, while the sum is 53.

The square root of 980684459 is about 31315.8818972099. The cubic root of 980684459 is about 993.5195812227.

The spelling of 980684459 in words is "nine hundred eighty million, six hundred eighty-four thousand, four hundred fifty-nine".