2064721 has 8 divisors (see below), whose sum is σ = 2125440. Its totient is φ = 2004912.

The previous prime is 2064703. The next prime is 2064737. The reversal of 2064721 is 1274602.

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 2064721 - 2¹¹ = 2062673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2064692 and 2064701.

It is not an unprimeable number, because it can be changed into a prime (2064761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8520 + ... + 8758.

It is an arithmetic number, because the mean of its divisors is an integer number (265680).

2^2064721 is an apocalyptic number.

It is an amenable number.

2064721 is a deficient number, since it is larger than the sum of its proper divisors (60719).

2064721 is a wasteful number, since it uses less digits than its factorization.

2064721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 2064721 is about 1436.9137065252. The cubic root of 2064721 is about 127.3367589209.

The spelling of 2064721 in words is "two million, sixty-four thousand, seven hundred twenty-one".