984837881 has 2 divisors, whose sum is σ = 984837882. Its totient is φ = 984837880.

The previous prime is 984837857. The next prime is 984837923. The reversal of 984837881 is 188738489.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 493550656 + 491287225 = 22216^2 + 22165^2 .

It is an emirp because it is prime and its reverse (188738489) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 984837881 - 2¹⁸ = 984575737 is a prime.

It is a super-2 number, since 2×984837881² = 1939811303705140322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (984837181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492418940 + 492418941.

It is an arithmetic number, because the mean of its divisors is an integer number (492418941).

Almost surely, 2^984837881 is an apocalyptic number.

It is an amenable number.

984837881 is a deficient number, since it is larger than the sum of its proper divisors (1).

984837881 is an equidigital number, since it uses as much as digits as its factorization.

984837881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3096576, while the sum is 56.

The square root of 984837881 is about 31382.1267762400. The cubic root of 984837881 is about 994.9201996555.

The spelling of 984837881 in words is "nine hundred eighty-four million, eight hundred thirty-seven thousand, eight hundred eighty-one".