3673828821 has 32 divisors (see below), whose sum is σ = 5430015360. Its totient is φ = 2195020800.

The previous prime is 3673828819. The next prime is 3673828831. The reversal of 3673828821 is 1288283763.

It is not a de Polignac number, because 3673828821 - 2¹ = 3673828819 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 (3673828831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 331945 + ... + 342833.

It is an arithmetic number, because the mean of its divisors is an integer number (169687980).

Almost surely, 2^3673828821 is an apocalyptic number.

It is an amenable number.

3673828821 is a deficient number, since it is larger than the sum of its proper divisors (1756186539).

3673828821 is a wasteful number, since it uses less digits than its factorization.

3673828821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11157.

The product of its digits is 774144, while the sum is 48.

The square root of 3673828821 is about 60612.1177735938. The cubic root of 3673828821 is about 1543.0250346408.

The spelling of 3673828821 in words is "three billion, six hundred seventy-three million, eight hundred twenty-eight thousand, eight hundred twenty-one".