2393940787 has 4 divisors (see below), whose sum is σ = 2735932336. Its totient is φ = 2051949240.

The previous prime is 2393940781. The next prime is 2393940803. The reversal of 2393940787 is 7870493932.

It is a happy number.

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 2393940787 - 2¹⁵ = 2393908019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2393940781) 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, 170995764 + ... + 170995777.

It is an arithmetic number, because the mean of its divisors is an integer number (683983084).

Almost surely, 2^2393940787 is an apocalyptic number.

2393940787 is a deficient number, since it is larger than the sum of its proper divisors (341991549).

2393940787 is an equidigital number, since it uses as much as digits as its factorization.

2393940787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341991548.

The product of its (nonzero) digits is 2286144, while the sum is 52.

The square root of 2393940787 is about 48927.9141901635. The cubic root of 2393940787 is about 1337.7382181683.

The spelling of 2393940787 in words is "two billion, three hundred ninety-three million, nine hundred forty thousand, seven hundred eighty-seven".