2984820681 has 12 divisors (see below), whose sum is σ = 4066247312. Its totient is φ = 1947538248.

The previous prime is 2984820677. The next prime is 2984820689. The reversal of 2984820681 is 1860284892.

It is not a de Polignac number, because 2984820681 - 2² = 2984820677 is a prime.

It is a super-2 number, since 2×2984820681² = 17818308995450607522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2984820681.

It is not an unprimeable number, because it can be changed into a prime (2984820689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 218575 + ... + 231828.

Almost surely, 2^2984820681 is an apocalyptic number.

It is an amenable number.

2984820681 is a deficient number, since it is larger than the sum of its proper divisors (1081426631).

2984820681 is an equidigital number, since it uses as much as digits as its factorization.

2984820681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450500 (or 450453 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 48.

The square root of 2984820681 is about 54633.5124351345. The cubic root of 2984820681 is about 1439.8129709834.

The spelling of 2984820681 in words is "two billion, nine hundred eighty-four million, eight hundred twenty thousand, six hundred eighty-one".