2798621599 has 2 divisors, whose sum is σ = 2798621600. Its totient is φ = 2798621598.

The previous prime is 2798621591. The next prime is 2798621621. The reversal of 2798621599 is 9951268972.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2798621599 - 2³ = 2798621591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2798621591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1399310799 + 1399310800.

It is an arithmetic number, because the mean of its divisors is an integer number (1399310800).

Almost surely, 2^2798621599 is an apocalyptic number.

2798621599 is a deficient number, since it is larger than the sum of its proper divisors (1).

2798621599 is an equidigital number, since it uses as much as digits as its factorization.

2798621599 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4898880, while the sum is 58.

The square root of 2798621599 is about 52901.9999527428. Note that the first 4 decimals coincide. The cubic root of 2798621599 is about 1409.2284226492.

The spelling of 2798621599 in words is "two billion, seven hundred ninety-eight million, six hundred twenty-one thousand, five hundred ninety-nine".