535462821 has 12 divisors (see below), whose sum is σ = 818943372. Its totient is φ = 335976576.

The previous prime is 535462813. The next prime is 535462843. The reversal of 535462821 is 128264535.

535462821 is a `hidden beast` number, since 5 + 3 + 5 + 4 + 628 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 304118721 + 231344100 = 17439^2 + 15210^2 .

It is not a de Polignac number, because 535462821 - 2³ = 535462813 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (535462801) 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 in 11 ways as a sum of consecutive naturals, for example, 1749726 + ... + 1750031.

It is an arithmetic number, because the mean of its divisors is an integer number (68245281).

Almost surely, 2^535462821 is an apocalyptic number.

535462821 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

535462821 is a deficient number, since it is larger than the sum of its proper divisors (283480551).

535462821 is a wasteful number, since it uses less digits than its factorization.

535462821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3499780 (or 3499777 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The square root of 535462821 is about 23140.0695979939. The cubic root of 535462821 is about 812.0381639185.

The spelling of 535462821 in words is "five hundred thirty-five million, four hundred sixty-two thousand, eight hundred twenty-one".