2798621604 has 45 divisors (see below), whose sum is σ = 7318639867. Its totient is φ = 932556456.

The previous prime is 2798621599. The next prime is 2798621621. The reversal of 2798621604 is 4061268972.

It is a happy number.

The square root of 2798621604 is 52902.

It is a perfect power (a square), and thus also a powerful number.

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 2798621604.

It is an unprimeable number.

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 14 ways as a sum of consecutive naturals, for example, 950767 + ... + 953705.

Almost surely, 2^2798621604 is an apocalyptic number.

2798621604 is the 52902-nd square number.

It is an amenable number.

2798621604 is an abundant number, since it is smaller than the sum of its proper divisors (4520018263).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2798621604 is an frugal number, since it uses more digits than its factorization.

2798621604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5894 (or 2944 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The cubic root of 2798621604 is about 1409.2284234884.

The spelling of 2798621604 in words is "two billion, seven hundred ninety-eight million, six hundred twenty-one thousand, six hundred four".