2263689 has 12 divisors (see below), whose sum is σ = 3304756. Its totient is φ = 1492992.

The previous prime is 2263687. The next prime is 2263691. The reversal of 2263689 is 9863622.

It is an interprime number because it is at equal distance from previous prime (2263687) and next prime (2263691).

It can be written as a sum of positive squares in 2 ways, for example, as 1192464 + 1071225 = 1092^2 + 1035^2 .

It is not a de Polignac number, because 2263689 - 2¹ = 2263687 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2263687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 424 + ... + 2169.

2^2263689 is an apocalyptic number.

It is an amenable number.

2263689 is a deficient number, since it is larger than the sum of its proper divisors (1041067).

2263689 is a wasteful number, since it uses less digits than its factorization.

2263689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2696 (or 2693 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 2263689 is about 1504.5560807095. The cubic root of 2263689 is about 131.3022757749.

The spelling of 2263689 in words is "two million, two hundred sixty-three thousand, six hundred eighty-nine".