1728098479 has 2 divisors, whose sum is σ = 1728098480. Its totient is φ = 1728098478.

The previous prime is 1728098461. The next prime is 1728098527. The reversal of 1728098479 is 9748908271.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1728098479 - 2⁹ = 1728097967 is a prime.

It is a super-2 number, since 2×1728098479² = 5972648706244226882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1728098419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 864049239 + 864049240.

It is an arithmetic number, because the mean of its divisors is an integer number (864049240).

Almost surely, 2^1728098479 is an apocalyptic number.

1728098479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1728098479 is an equidigital number, since it uses as much as digits as its factorization.

1728098479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2032128, while the sum is 55.

The square root of 1728098479 is about 41570.4038830512. The cubic root of 1728098479 is about 1200.0227956318.

The spelling of 1728098479 in words is "one billion, seven hundred twenty-eight million, ninety-eight thousand, four hundred seventy-nine".