2263399 has 4 divisors (see below), whose sum is σ = 2272464. Its totient is φ = 2254336.

The previous prime is 2263381. The next prime is 2263411. The reversal of 2263399 is 9933622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9933622 = 2 ⋅4966811.

It is a cyclic number.

It is not a de Polignac number, because 2263399 - 2²¹ = 166247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2263319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4147 + ... + 4660.

It is an arithmetic number, because the mean of its divisors is an integer number (568116).

2^2263399 is an apocalyptic number.

2263399 is a deficient number, since it is larger than the sum of its proper divisors (9065).

2263399 is an equidigital number, since it uses as much as digits as its factorization.

2263399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9064.

The product of its digits is 17496, while the sum is 34.

The square root of 2263399 is about 1504.4597036810. The cubic root of 2263399 is about 131.2966685137.

It can be divided in two parts, 2263 and 399, that added together give a palindrome (2662).

The spelling of 2263399 in words is "two million, two hundred sixty-three thousand, three hundred ninety-nine".