2287399 has 4 divisors (see below), whose sum is σ = 2301264. Its totient is φ = 2273536.

The previous prime is 2287393. The next prime is 2287409. The reversal of 2287399 is 9937822.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2287399 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2287393) 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, 6682 + ... + 7015.

It is an arithmetic number, because the mean of its divisors is an integer number (575316).

2^2287399 is an apocalyptic number.

2287399 is a deficient number, since it is larger than the sum of its proper divisors (13865).

2287399 is a wasteful number, since it uses less digits than its factorization.

2287399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13864.

The product of its digits is 54432, while the sum is 40.

The square root of 2287399 is about 1512.4149562868. The cubic root of 2287399 is about 131.7591068698.

The spelling of 2287399 in words is "two million, two hundred eighty-seven thousand, three hundred ninety-nine".