2798515802 has 4 divisors (see below), whose sum is σ = 4197773706. Its totient is φ = 1399257900.

The previous prime is 2798515799. The next prime is 2798515807. The reversal of 2798515802 is 2085158972.

It is a Cunningham number, because it is equal to 52901²+1.

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

It can be written as a sum of positive squares in only one way, i.e., 2798515801 + 1 = 52901^2 + 1^2 .

It is not an unprimeable number, because it can be changed into a prime (2798515807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699628949 + ... + 699628952.

Almost surely, 2^2798515802 is an apocalyptic number.

2798515802 is a deficient number, since it is larger than the sum of its proper divisors (1399257904).

2798515802 is a wasteful number, since it uses less digits than its factorization.

2798515802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1399257903.

The product of its (nonzero) digits is 403200, while the sum is 47.

The square root of 2798515802 is about 52901.0000094516. Note that the first 5 decimals coincide. The cubic root of 2798515802 is about 1409.2106646193.

The spelling of 2798515802 in words is "two billion, seven hundred ninety-eight million, five hundred fifteen thousand, eight hundred two".