4970984021 has 2 divisors, whose sum is σ = 4970984022. Its totient is φ = 4970984020.

The previous prime is 4970983993. The next prime is 4970984063. The reversal of 4970984021 is 1204890794.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2960448100 + 2010535921 = 54410^2 + 44839^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4970984021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4970989021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2485492010 + 2485492011.

It is an arithmetic number, because the mean of its divisors is an integer number (2485492011).

Almost surely, 2^4970984021 is an apocalyptic number.

It is an amenable number.

4970984021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4970984021 is an equidigital number, since it uses as much as digits as its factorization.

4970984021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 4970984021 is about 70505.2056305065. The cubic root of 4970984021 is about 1706.6617523349.

The spelling of 4970984021 in words is "four billion, nine hundred seventy million, nine hundred eighty-four thousand, twenty-one".