980111947 has 2 divisors, whose sum is σ = 980111948. Its totient is φ = 980111946.

The previous prime is 980111939. The next prime is 980111969. The reversal of 980111947 is 749111089.

It is a weak prime.

It is an emirp because it is prime and its reverse (749111089) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 980111947 - 2³ = 980111939 is a prime.

It is not a weakly prime, because it can be changed into another prime (980111917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490055973 + 490055974.

It is an arithmetic number, because the mean of its divisors is an integer number (490055974).

Almost surely, 2^980111947 is an apocalyptic number.

980111947 is a deficient number, since it is larger than the sum of its proper divisors (1).

980111947 is an equidigital number, since it uses as much as digits as its factorization.

980111947 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 40.

The square root of 980111947 is about 31306.7396418088. The cubic root of 980111947 is about 993.3262085907.

The spelling of 980111947 in words is "nine hundred eighty million, one hundred eleven thousand, nine hundred forty-seven".