1289930593 has 8 divisors (see below), whose sum is σ = 1514050112. Its totient is φ = 1075772016.

The previous prime is 1289930567. The next prime is 1289930623. The reversal of 1289930593 is 3950399821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1289930593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1289934593) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2489955 + ... + 2490472.

It is an arithmetic number, because the mean of its divisors is an integer number (189256264).

Almost surely, 2^1289930593 is an apocalyptic number.

It is an amenable number.

1289930593 is a deficient number, since it is larger than the sum of its proper divisors (224119519).

1289930593 is an equidigital number, since it uses as much as digits as its factorization.

1289930593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4980471.

The product of its (nonzero) digits is 524880, while the sum is 49.

The square root of 1289930593 is about 35915.6037538004. The cubic root of 1289930593 is about 1088.5677096986.

The spelling of 1289930593 in words is "one billion, two hundred eighty-nine million, nine hundred thirty thousand, five hundred ninety-three".