827683021 has 16 divisors (see below), whose sum is σ = 912276288. Its totient is φ = 744681600.

The previous prime is 827683013. The next prime is 827683057. The reversal of 827683021 is 120386728.

827683021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 827683021 - 2³ = 827683013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (827683061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 882865 + ... + 883801.

It is an arithmetic number, because the mean of its divisors is an integer number (57017268).

Almost surely, 2^827683021 is an apocalyptic number.

It is an amenable number.

827683021 is a deficient number, since it is larger than the sum of its proper divisors (84593267).

827683021 is a wasteful number, since it uses less digits than its factorization.

827683021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 827683021 is about 28769.4807217649. The cubic root of 827683021 is about 938.9043447325.

The spelling of 827683021 in words is "eight hundred twenty-seven million, six hundred eighty-three thousand, twenty-one".