2064689 has 4 divisors (see below), whose sum is σ = 2252400. Its totient is φ = 1876980.

The previous prime is 2064679. The next prime is 2064703. The reversal of 2064689 is 9864602.

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 a de Polignac number, because none of the positive numbers 2^k-2064689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2064619) 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, 93839 + ... + 93860.

It is an arithmetic number, because the mean of its divisors is an integer number (563100).

2^2064689 is an apocalyptic number.

It is an amenable number.

2064689 is a deficient number, since it is larger than the sum of its proper divisors (187711).

2064689 is a wasteful number, since it uses less digits than its factorization.

2064689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187710.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 2064689 is about 1436.9025715058. The cubic root of 2064689 is about 127.3361010762.

The spelling of 2064689 in words is "two million, sixty-four thousand, six hundred eighty-nine".