4528820843 has 2 divisors, whose sum is σ = 4528820844. Its totient is φ = 4528820842.

The previous prime is 4528820837. The next prime is 4528820887. The reversal of 4528820843 is 3480288254.

It is an a-pointer prime, because the next prime (4528820887) can be obtained adding 4528820843 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4528820843 is a prime.

It is a super-5 number, since 5×4528820843⁵ (a number of 49 digits) contains 55555 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 4528820794 and 4528820803.

It is not a weakly prime, because it can be changed into another prime (4528820833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2264410421 + 2264410422.

It is an arithmetic number, because the mean of its divisors is an integer number (2264410422).

Almost surely, 2^4528820843 is an apocalyptic number.

4528820843 is the 35972-nd centered heptagonal number.

4528820843 is a deficient number, since it is larger than the sum of its proper divisors (1).

4528820843 is an equidigital number, since it uses as much as digits as its factorization.

4528820843 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 491520, while the sum is 44.

The square root of 4528820843 is about 67296.5143450981. The cubic root of 4528820843 is about 1654.4807312063.

The spelling of 4528820843 in words is "four billion, five hundred twenty-eight million, eight hundred twenty thousand, eight hundred forty-three".