1799228749 has 2 divisors, whose sum is σ = 1799228750. Its totient is φ = 1799228748.

The previous prime is 1799228741. The next prime is 1799228771. The reversal of 1799228749 is 9478229971.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1375074724 + 424154025 = 37082^2 + 20595^2 .

It is a cyclic number.

It is not a de Polignac number, because 1799228749 - 2³ = 1799228741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1799228693 and 1799228702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1799228741) 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 as a sum of consecutive naturals, namely, 899614374 + 899614375.

It is an arithmetic number, because the mean of its divisors is an integer number (899614375).

Almost surely, 2^1799228749 is an apocalyptic number.

It is an amenable number.

1799228749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1799228749 is an equidigital number, since it uses as much as digits as its factorization.

1799228749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 58.

The square root of 1799228749 is about 42417.3166171553. The cubic root of 1799228749 is about 1216.2666370959.

The spelling of 1799228749 in words is "one billion, seven hundred ninety-nine million, two hundred twenty-eight thousand, seven hundred forty-nine".