1790099489 has 2 divisors, whose sum is σ = 1790099490. Its totient is φ = 1790099488.

The previous prime is 1790099477. The next prime is 1790099491. The reversal of 1790099489 is 9849900971.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1430352400 + 359747089 = 37820^2 + 18967^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1790099489 is a prime.

It is a super-2 number, since 2×1790099489² = 6408912361036122242, which contains 22 as substring.

Together with 1790099491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1790099189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 895049744 + 895049745.

It is an arithmetic number, because the mean of its divisors is an integer number (895049745).

Almost surely, 2^1790099489 is an apocalyptic number.

It is an amenable number.

1790099489 is a deficient number, since it is larger than the sum of its proper divisors (1).

1790099489 is an equidigital number, since it uses as much as digits as its factorization.

1790099489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1469664, while the sum is 56.

The square root of 1790099489 is about 42309.5673459325. The cubic root of 1790099489 is about 1214.2060417174.

The spelling of 1790099489 in words is "one billion, seven hundred ninety million, ninety-nine thousand, four hundred eighty-nine".