528460421 has 2 divisors, whose sum is σ = 528460422. Its totient is φ = 528460420.

The previous prime is 528460399. The next prime is 528460483. The reversal of 528460421 is 124064825.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 488896321 + 39564100 = 22111^2 + 6290^2 .

It is a cyclic number.

It is not a de Polignac number, because 528460421 - 2¹⁰ = 528459397 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (528460321) 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 as a sum of consecutive naturals, namely, 264230210 + 264230211.

It is an arithmetic number, because the mean of its divisors is an integer number (264230211).

Almost surely, 2^528460421 is an apocalyptic number.

It is an amenable number.

528460421 is a deficient number, since it is larger than the sum of its proper divisors (1).

528460421 is an equidigital number, since it uses as much as digits as its factorization.

528460421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 528460421 is about 22988.2670290738. The cubic root of 528460421 is about 808.4828691740.

The spelling of 528460421 in words is "five hundred twenty-eight million, four hundred sixty thousand, four hundred twenty-one".