2277889 has 2 divisors, whose sum is σ = 2277890. Its totient is φ = 2277888.

The previous prime is 2277883. The next prime is 2277901. The reversal of 2277889 is 9887722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2250000 + 27889 = 1500^2 + 167^2 .

It is a cyclic number.

It is not a de Polignac number, because 2277889 - 2⁵ = 2277857 is a prime.

It is a d-powerful number, because it can be written as 2⁵ + 2¹⁷ + 7² + 7⁵ + 8⁵ + 8⁷ + 9 .

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (2277883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1138944 + 1138945.

It is an arithmetic number, because the mean of its divisors is an integer number (1138945).

2^2277889 is an apocalyptic number.

It is an amenable number.

2277889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2277889 is an equidigital number, since it uses as much as digits as its factorization.

2277889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 43.

The square root of 2277889 is about 1509.2677032256. The cubic root of 2277889 is about 131.5762544038.

The spelling of 2277889 in words is "two million, two hundred seventy-seven thousand, eight hundred eighty-nine".