3794821 has 4 divisors (see below), whose sum is σ = 3859200. Its totient is φ = 3730444.

The previous prime is 3794809. The next prime is 3794863. The reversal of 3794821 is 1284973.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1284973 = 37 ⋅34729.

It is a cyclic number.

It is not a de Polignac number, because 3794821 - 2⁵ = 3794789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3794891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32101 + ... + 32218.

It is an arithmetic number, because the mean of its divisors is an integer number (964800).

Almost surely, 2^3794821 is an apocalyptic number.

It is an amenable number.

3794821 is a deficient number, since it is larger than the sum of its proper divisors (64379).

3794821 is an equidigital number, since it uses as much as digits as its factorization.

3794821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64378.

The product of its digits is 12096, while the sum is 34.

The square root of 3794821 is about 1948.0300305693. The cubic root of 3794821 is about 155.9781500189.

The spelling of 3794821 in words is "three million, seven hundred ninety-four thousand, eight hundred twenty-one".