2263665 has 16 divisors (see below), whose sum is σ = 3643200. Its totient is φ = 1200192.

The previous prime is 2263643. The next prime is 2263687. The reversal of 2263665 is 5663622.

It is an interprime number because it is at equal distance from previous prime (2263643) and next prime (2263687).

It is not a de Polignac number, because 2263665 - 2⁵ = 2263633 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3106 + ... + 3764.

It is an arithmetic number, because the mean of its divisors is an integer number (227700).

2^2263665 is an apocalyptic number.

It is an amenable number.

2263665 is a deficient number, since it is larger than the sum of its proper divisors (1379535).

2263665 is a wasteful number, since it uses less digits than its factorization.

2263665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896.

The product of its digits is 12960, while the sum is 30.

The square root of 2263665 is about 1504.5481049139. The cubic root of 2263665 is about 131.3018117439.

The spelling of 2263665 in words is "two million, two hundred sixty-three thousand, six hundred sixty-five".