2085421 has 8 divisors (see below), whose sum is σ = 2364320. Its totient is φ = 1823472.

The previous prime is 2085409. The next prime is 2085469. The reversal of 2085421 is 1245802.

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 2085421 - 2¹⁷ = 1954349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2085392 and 2085401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2085481) 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 7 ways as a sum of consecutive naturals, for example, 3975 + ... + 4468.

It is an arithmetic number, because the mean of its divisors is an integer number (295540).

2^2085421 is an apocalyptic number.

It is an amenable number.

2085421 is a deficient number, since it is larger than the sum of its proper divisors (278899).

2085421 is a wasteful number, since it uses less digits than its factorization.

2085421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8475.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 2085421 is about 1444.0986808387. The cubic root of 2085421 is about 127.7608857877.

The spelling of 2085421 in words is "two million, eighty-five thousand, four hundred twenty-one".