2063621 has 4 divisors (see below), whose sum is σ = 2358432. Its totient is φ = 1768812.

The previous prime is 2063617. The next prime is 2063627. The reversal of 2063621 is 1263602.

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.

It is a cyclic number.

It is not a de Polignac number, because 2063621 - 2² = 2063617 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2063593 and 2063602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2063627) 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, 147395 + ... + 147408.

It is an arithmetic number, because the mean of its divisors is an integer number (589608).

2^2063621 is an apocalyptic number.

It is an amenable number.

2063621 is a deficient number, since it is larger than the sum of its proper divisors (294811).

2063621 is an equidigital number, since it uses as much as digits as its factorization.

2063621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294810.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2063621 is about 1436.5308907225. The cubic root of 2063621 is about 127.3141416090.

The spelling of 2063621 in words is "two million, sixty-three thousand, six hundred twenty-one".