2289765 has 16 divisors (see below), whose sum is σ = 3823488. Its totient is φ = 1167936.

The previous prime is 2289761. The next prime is 2289767. The reversal of 2289765 is 5679822.

It is a happy number.

It is not a de Polignac number, because 2289765 - 2² = 2289761 is a prime.

It is a d-powerful number, because it can be written as 2¹³ + 2¹⁷ + 8⁷ + 9⁴ + 7 + 6⁶ + 5³ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2289761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2974 + ... + 3663.

It is an arithmetic number, because the mean of its divisors is an integer number (238968).

2^2289765 is an apocalyptic number.

It is an amenable number.

2289765 is a deficient number, since it is larger than the sum of its proper divisors (1533723).

2289765 is a wasteful number, since it uses less digits than its factorization.

2289765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6668.

The product of its digits is 60480, while the sum is 39.

The square root of 2289765 is about 1513.1969468645. The cubic root of 2289765 is about 131.8045201133.

The spelling of 2289765 in words is "two million, two hundred eighty-nine thousand, seven hundred sixty-five".