1933069821 has 16 divisors (see below), whose sum is σ = 2672017920. Its totient is φ = 1241775360.

The previous prime is 1933069793. The next prime is 1933069841. The reversal of 1933069821 is 1289603391.

It is not a de Polignac number, because 1933069821 - 2⁷ = 1933069693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1933069841) 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 in 15 ways as a sum of consecutive naturals, for example, 22936 + ... + 66273.

It is an arithmetic number, because the mean of its divisors is an integer number (167001120).

Almost surely, 2^1933069821 is an apocalyptic number.

It is an amenable number.

1933069821 is a deficient number, since it is larger than the sum of its proper divisors (738948099).

1933069821 is a wasteful number, since it uses less digits than its factorization.

1933069821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89476.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 1933069821 is about 43966.6899026979. The cubic root of 1933069821 is about 1245.7068336724.

The spelling of 1933069821 in words is "one billion, nine hundred thirty-three million, sixty-nine thousand, eight hundred twenty-one".