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2007889 = 1321092
BaseRepresentation
bin111101010001101010001
310210000022021
413222031101
51003223024
6111011441
723031622
oct7521521
93700267
102007889
111151614
12809b81
13553c00
143a3a49
15299de4
hex1ea351

2007889 has 9 divisors (see below), whose sum is σ = 2194353. Its totient is φ = 1836432.

The previous prime is 2007883. The next prime is 2007899. The reversal of 2007889 is 9887002.

It is a happy number.

The square root of 2007889 is 1417.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 70225 + 1937664 = 265^2 + 1392^2 .

It is not a de Polignac number, because 2007889 - 23 = 2007881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2007881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18367 + ... + 18475.

It is an arithmetic number, because the mean of its divisors is an integer number (243817).

22007889 is an apocalyptic number.

2007889 is the 1417-th square number.

2007889 is the 709-th centered octagonal number.

It is an amenable number.

2007889 is a deficient number, since it is larger than the sum of its proper divisors (186464).

2007889 is an equidigital number, since it uses as much as digits as its factorization.

2007889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The cubic root of 2007889 is about 126.1575462715.

The spelling of 2007889 in words is "two million, seven thousand, eight hundred eighty-nine".

Divisors: 1 13 109 169 1417 11881 18421 154453 2007889