2072989 has 4 divisors (see below), whose sum is σ = 2112156. Its totient is φ = 2033824.

The previous prime is 2072977. The next prime is 2073011. The reversal of 2072989 is 9892702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9892702 = 2 ⋅4946351.

It can be written as a sum of positive squares in 2 ways, for example, as 840889 + 1232100 = 917^2 + 1110^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2072989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2072969) 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, 19504 + ... + 19609.

It is an arithmetic number, because the mean of its divisors is an integer number (528039).

2^2072989 is an apocalyptic number.

It is an amenable number.

2072989 is a deficient number, since it is larger than the sum of its proper divisors (39167).

2072989 is an equidigital number, since it uses as much as digits as its factorization.

2072989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39166.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 2072989 is about 1439.7878315919. The cubic root of 2072989 is about 127.5065022956.

The spelling of 2072989 in words is "two million, seventy-two thousand, nine hundred eighty-nine".