2387402779 has 2 divisors, whose sum is σ = 2387402780. Its totient is φ = 2387402778.

The previous prime is 2387402767. The next prime is 2387402789. The reversal of 2387402779 is 9772047832.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2387402779 - 2⁵ = 2387402747 is a prime.

It is not a weakly prime, because it can be changed into another prime (2387402729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1193701389 + 1193701390.

It is an arithmetic number, because the mean of its divisors is an integer number (1193701390).

Almost surely, 2^2387402779 is an apocalyptic number.

2387402779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2387402779 is an equidigital number, since it uses as much as digits as its factorization.

2387402779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1185408, while the sum is 49.

The square root of 2387402779 is about 48861.0558522838. The cubic root of 2387402779 is about 1336.5192911425.

The spelling of 2387402779 in words is "two billion, three hundred eighty-seven million, four hundred two thousand, seven hundred seventy-nine".