2779260887 has 8 divisors (see below), whose sum is σ = 3089600640. Its totient is φ = 2482714080.

The previous prime is 2779260871. The next prime is 2779260889. The reversal of 2779260887 is 7880629772.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2779260887 - 2⁴ = 2779260871 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 (2779260889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3447812 + ... + 3448617.

It is an arithmetic number, because the mean of its divisors is an integer number (386200080).

Almost surely, 2^2779260887 is an apocalyptic number.

2779260887 is a deficient number, since it is larger than the sum of its proper divisors (310339753).

2779260887 is a wasteful number, since it uses less digits than its factorization.

2779260887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6896473.

The product of its (nonzero) digits is 4741632, while the sum is 56.

The square root of 2779260887 is about 52718.6958013948. The cubic root of 2779260887 is about 1405.9712448769.

The spelling of 2779260887 in words is "two billion, seven hundred seventy-nine million, two hundred sixty thousand, eight hundred eighty-seven".