539885421 has 18 divisors (see below), whose sum is σ = 783688490. Its totient is φ = 358153056.

The previous prime is 539885419. The next prime is 539885519. The reversal of 539885421 is 124588935.

It can be written as a sum of positive squares in 3 ways, for example, as 4888521 + 534996900 = 2211^2 + 23130^2 .

It is not a de Polignac number, because 539885421 - 2¹ = 539885419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (539885321) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 650835 + ... + 651663.

Almost surely, 2^539885421 is an apocalyptic number.

It is an amenable number.

539885421 is a deficient number, since it is larger than the sum of its proper divisors (243803069).

539885421 is an equidigital number, since it uses as much as digits as its factorization.

539885421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373 (or 1101 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 539885421 is about 23235.4345989052. The cubic root of 539885421 is about 814.2676854866.

The spelling of 539885421 in words is "five hundred thirty-nine million, eight hundred eighty-five thousand, four hundred twenty-one".