4784474021 has 2 divisors, whose sum is σ = 4784474022. Its totient is φ = 4784474020.

The previous prime is 4784474003. The next prime is 4784474039. The reversal of 4784474021 is 1204744874.

4784474021 = 48910² + 48911².

It is a balanced prime because it is at equal distance from previous prime (4784474003) and next prime (4784474039).

It can be written as a sum of positive squares in only one way, i.e., 2392285921 + 2392188100 = 48911^2 + 48910^2 .

It is a cyclic number.

It is not a de Polignac number, because 4784474021 - 2²² = 4780279717 is a prime.

It is a super-3 number, since 3×4784474021³ (a number of 30 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4784474021.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4784474041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2392237010 + 2392237011.

It is an arithmetic number, because the mean of its divisors is an integer number (2392237011).

Almost surely, 2^4784474021 is an apocalyptic number.

4784474021 is the 48911-st centered square number.

It is an amenable number.

4784474021 is a deficient number, since it is larger than the sum of its proper divisors (1).

4784474021 is an equidigital number, since it uses as much as digits as its factorization.

4784474021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200704, while the sum is 41.

The square root of 4784474021 is about 69169.8924460636. The cubic root of 4784474021 is about 1685.0445997229.

The spelling of 4784474021 in words is "four billion, seven hundred eighty-four million, four hundred seventy-four thousand, twenty-one".