3820829 has 8 divisors (see below), whose sum is σ = 4008192. Its totient is φ = 3635280.

The previous prime is 3820813. The next prime is 3820841. The reversal of 3820829 is 9280283.

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 not a de Polignac number, because 3820829 - 2⁴ = 3820813 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3820795 and 3820804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3820849) 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, 5927 + ... + 6539.

It is an arithmetic number, because the mean of its divisors is an integer number (501024).

Almost surely, 2^3820829 is an apocalyptic number.

It is an amenable number.

3820829 is a deficient number, since it is larger than the sum of its proper divisors (187363).

3820829 is a wasteful number, since it uses less digits than its factorization.

3820829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 3820829 is about 1954.6940937139. The cubic root of 3820829 is about 156.3336737970. Note that the first 3 decimals are identical.

The spelling of 3820829 in words is "three million, eight hundred twenty thousand, eight hundred twenty-nine".