828053421 has 16 divisors (see below), whose sum is σ = 1251579840. Its totient is φ = 482751360.

The previous prime is 828053399. The next prime is 828053423. The reversal of 828053421 is 124350828.

It is not a de Polignac number, because 828053421 - 2⁵ = 828053389 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 (828053423) 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 15 ways as a sum of consecutive naturals, for example, 558000 + ... + 559481.

It is an arithmetic number, because the mean of its divisors is an integer number (78223740).

Almost surely, 2^828053421 is an apocalyptic number.

It is an amenable number.

828053421 is a deficient number, since it is larger than the sum of its proper divisors (423526419).

828053421 is a wasteful number, since it uses less digits than its factorization.

828053421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117516.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 828053421 is about 28775.9173789473. The cubic root of 828053421 is about 939.0443815565.

The spelling of 828053421 in words is "eight hundred twenty-eight million, fifty-three thousand, four hundred twenty-one".