1724990089 has 9 divisors (see below), whose sum is σ = 1769836309. Its totient is φ = 1681255840.

The previous prime is 1724990081. The next prime is 1724990129. The reversal of 1724990089 is 9800994271.

The square root of 1724990089 is 41533.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1606005625 + 118984464 = 40075^2 + 10908^2 .

It is not a de Polignac number, because 1724990089 - 2³ = 1724990081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1724990081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1702347 + ... + 1703359.

Almost surely, 2^1724990089 is an apocalyptic number.

1724990089 is the 41533-rd square number.

1724990089 is the 20767-th centered octagonal number.

It is an amenable number.

1724990089 is a deficient number, since it is larger than the sum of its proper divisors (44846220).

1724990089 is an frugal number, since it uses more digits than its factorization.

1724990089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108 (or 1054 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 49.

The cubic root of 1724990089 is about 1199.3028564134.

Multiplying 1724990089 by its sum of digits (49), we get a square (84524514361 = 290731²).

The spelling of 1724990089 in words is "one billion, seven hundred twenty-four million, nine hundred ninety thousand, eighty-nine".