3821790868 has 36 divisors (see below), whose sum is σ = 8048364660. Its totient is φ = 1581428352.

The previous prime is 3821790767. The next prime is 3821790871. The reversal of 3821790868 is 8680971283.

It can be written as a sum of positive squares in 2 ways, for example, as 2243159044 + 1578631824 = 47362^2 + 39732^2 .

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 330505 + ... + 341872.

It is an arithmetic number, because the mean of its divisors is an integer number (223565685).

Almost surely, 2^3821790868 is an apocalyptic number.

It is an amenable number.

3821790868 is an abundant number, since it is smaller than the sum of its proper divisors (4226573792).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3821790868 is a wasteful number, since it uses less digits than its factorization.

3821790868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672424 (or 672415 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 52.

The square root of 3821790868 is about 61820.6346457233. The cubic root of 3821790868 is about 1563.4679134656.

The spelling of 3821790868 in words is "three billion, eight hundred twenty-one million, seven hundred ninety thousand, eight hundred sixty-eight".