2263989 has 16 divisors (see below), whose sum is σ = 3715712. Its totient is φ = 1194048.

The previous prime is 2263969. The next prime is 2264027. The reversal of 2263989 is 9893622.

2263989 is nontrivially palindromic in base 12.

2263989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2263989 - 2⁵ = 2263957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a d-powerful number, because it can be written as 2¹⁷ + 2²¹ + 6⁴ + 3⁵ + 9³ + 8⁵ + 9³ .

It is a Curzon number.

2263989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2263909) 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 15 ways as a sum of consecutive naturals, for example, 3874 + ... + 4419.

It is an arithmetic number, because the mean of its divisors is an integer number (232232).

2^2263989 is an apocalyptic number.

It is an amenable number.

2263989 is a deficient number, since it is larger than the sum of its proper divisors (1451723).

2263989 is a wasteful number, since it uses less digits than its factorization.

2263989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8316.

The product of its digits is 46656, while the sum is 39.

The square root of 2263989 is about 1504.6557745877. The cubic root of 2263989 is about 131.3080758859.

The spelling of 2263989 in words is "two million, two hundred sixty-three thousand, nine hundred eighty-nine".