2063721 has 16 divisors (see below), whose sum is σ = 3133440. Its totient is φ = 1195920.

The previous prime is 2063707. The next prime is 2063729. The reversal of 2063721 is 1273602.

It is a happy number.

It is not a de Polignac number, because 2063721 - 2¹¹ = 2061673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2063729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 601 + ... + 2118.

It is an arithmetic number, because the mean of its divisors is an integer number (195840).

2^2063721 is an apocalyptic number.

It is an amenable number.

2063721 is a deficient number, since it is larger than the sum of its proper divisors (1069719).

2063721 is a wasteful number, since it uses less digits than its factorization.

2063721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2756.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 2063721 is about 1436.5656963745. The cubic root of 2063721 is about 127.3161980603.

The spelling of 2063721 in words is "two million, sixty-three thousand, seven hundred twenty-one".