3828209081 has 8 divisors (see below), whose sum is σ = 3886026144. Its totient is φ = 3770766720.

The previous prime is 3828209071. The next prime is 3828209089. The reversal of 3828209081 is 1809028283.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3828209081 is a prime.

It is a super-2 number, since 2×3828209081² = 29310369535701729122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3828209089) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73055 + ... + 113988.

It is an arithmetic number, because the mean of its divisors is an integer number (485753268).

Almost surely, 2^3828209081 is an apocalyptic number.

It is an amenable number.

3828209081 is a deficient number, since it is larger than the sum of its proper divisors (57817063).

3828209081 is a wasteful number, since it uses less digits than its factorization.

3828209081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187351.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 3828209081 is about 61872.5228271807. The cubic root of 3828209081 is about 1564.3426393337.

The spelling of 3828209081 in words is "three billion, eight hundred twenty-eight million, two hundred nine thousand, eighty-one".