3676821 has 8 divisors (see below), whose sum is σ = 4985760. Its totient is φ = 2409552.

The previous prime is 3676819. The next prime is 3676831. The reversal of 3676821 is 1286763.

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

It is not a de Polignac number, because 3676821 - 2¹ = 3676819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3676831) 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, 10210 + ... + 10563.

It is an arithmetic number, because the mean of its divisors is an integer number (623220).

Almost surely, 2^3676821 is an apocalyptic number.

It is an amenable number.

3676821 is a deficient number, since it is larger than the sum of its proper divisors (1308939).

3676821 is a wasteful number, since it uses less digits than its factorization.

3676821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20835.

The product of its digits is 12096, while the sum is 33.

The square root of 3676821 is about 1917.5038461500. The cubic root of 3676821 is about 154.3443830620.

The spelling of 3676821 in words is "three million, six hundred seventy-six thousand, eight hundred twenty-one".