Search a number
-
+
2072489 is a prime number
BaseRepresentation
bin111111001111110101001
310220021220212
413321332221
51012304424
6112230505
723421146
oct7717651
93807825
102072489
111196101
1283b435
13577433
143bd3cd
152ae10e
hex1f9fa9

2072489 has 2 divisors, whose sum is σ = 2072490. Its totient is φ = 2072488.

The previous prime is 2072479. The next prime is 2072491. The reversal of 2072489 is 9842702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1669264 + 403225 = 1292^2 + 635^2 .

It is a cyclic number.

It is not a de Polignac number, because 2072489 - 212 = 2068393 is a prime.

Together with 2072491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2072429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1036244 + 1036245.

It is an arithmetic number, because the mean of its divisors is an integer number (1036245).

22072489 is an apocalyptic number.

It is an amenable number.

2072489 is a deficient number, since it is larger than the sum of its proper divisors (1).

2072489 is an equidigital number, since it uses as much as digits as its factorization.

2072489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2072489 is about 1439.6141844258. The cubic root of 2072489 is about 127.4962500499.

The spelling of 2072489 in words is "two million, seventy-two thousand, four hundred eighty-nine".