1789465493 has 2 divisors, whose sum is σ = 1789465494. Its totient is φ = 1789465492.

The previous prime is 1789465427. The next prime is 1789465501. The reversal of 1789465493 is 3945649871.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1511809924 + 277655569 = 38882^2 + 16663^2 .

It is an emirp because it is prime and its reverse (3945649871) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1789465493 - 2²⁸ = 1521030037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1789405493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 894732746 + 894732747.

It is an arithmetic number, because the mean of its divisors is an integer number (894732747).

Almost surely, 2^1789465493 is an apocalyptic number.

It is an amenable number.

1789465493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1789465493 is an equidigital number, since it uses as much as digits as its factorization.

1789465493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 56.

The square root of 1789465493 is about 42302.0743344815. The cubic root of 1789465493 is about 1214.0626804729.

The spelling of 1789465493 in words is "one billion, seven hundred eighty-nine million, four hundred sixty-five thousand, four hundred ninety-three".