2034821 has 4 divisors (see below), whose sum is σ = 2049600. Its totient is φ = 2020044.

The previous prime is 2034817. The next prime is 2034827. The reversal of 2034821 is 1284302.

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: 1284302 = 2 ⋅642151.

It is a cyclic number.

It is not a de Polignac number, because 2034821 - 2² = 2034817 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2034793 and 2034802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2034827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7181 + ... + 7458.

It is an arithmetic number, because the mean of its divisors is an integer number (512400).

2^2034821 is an apocalyptic number.

It is an amenable number.

2034821 is a deficient number, since it is larger than the sum of its proper divisors (14779).

2034821 is a wasteful number, since it uses less digits than its factorization.

2034821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14778.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2034821 is about 1426.4715209215. The cubic root of 2034821 is about 126.7190972543.

The spelling of 2034821 in words is "two million, thirty-four thousand, eight hundred twenty-one".