2378787 has 4 divisors (see below), whose sum is σ = 3171720. Its totient is φ = 1585856.

The previous prime is 2378773. The next prime is 2378791. The reversal of 2378787 is 7878732.

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

It is a cyclic number.

It is not a de Polignac number, because 2378787 - 2⁴ = 2378771 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (2378737) 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, 396462 + ... + 396467.

It is an arithmetic number, because the mean of its divisors is an integer number (792930).

2^2378787 is an apocalyptic number.

2378787 is a deficient number, since it is larger than the sum of its proper divisors (792933).

2378787 is an equidigital number, since it uses as much as digits as its factorization.

2378787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792932.

The product of its digits is 131712, while the sum is 42.

The square root of 2378787 is about 1542.3316763913. The cubic root of 2378787 is about 133.4909587222.

Subtracting 2378787 from its reverse (7878732), we obtain a palindrome (5499945).

The spelling of 2378787 in words is "two million, three hundred seventy-eight thousand, seven hundred eighty-seven".