2797087811 has 8 divisors (see below), whose sum is σ = 3198223104. Its totient is φ = 2396340360.

The previous prime is 2797087807. The next prime is 2797087823. The reversal of 2797087811 is 1187807972.

It is a happy number.

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 2797087811 - 2² = 2797087807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2797087811.

It is not an unprimeable number, because it can be changed into a prime (2797087511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81335 + ... + 110496.

It is an arithmetic number, because the mean of its divisors is an integer number (399777888).

Almost surely, 2^2797087811 is an apocalyptic number.

2797087811 is a deficient number, since it is larger than the sum of its proper divisors (401135293).

2797087811 is a wasteful number, since it uses less digits than its factorization.

2797087811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193921.

The product of its (nonzero) digits is 395136, while the sum is 50.

The square root of 2797087811 is about 52887.5014630111. The cubic root of 2797087811 is about 1408.9709324824.

The spelling of 2797087811 in words is "two billion, seven hundred ninety-seven million, eighty-seven thousand, eight hundred eleven".