1790945317 has 4 divisors (see below), whose sum is σ = 2046794656. Its totient is φ = 1535095980.

The previous prime is 1790945311. The next prime is 1790945327. The reversal of 1790945317 is 7135490971.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1790945317 - 2¹¹ = 1790943269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1790945311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127924659 + ... + 127924672.

It is an arithmetic number, because the mean of its divisors is an integer number (511698664).

Almost surely, 2^1790945317 is an apocalyptic number.

It is an amenable number.

1790945317 is a deficient number, since it is larger than the sum of its proper divisors (255849339).

1790945317 is an equidigital number, since it uses as much as digits as its factorization.

1790945317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255849338.

The product of its (nonzero) digits is 238140, while the sum is 46.

The square root of 1790945317 is about 42319.5618715506. The cubic root of 1790945317 is about 1214.3972504112.

The spelling of 1790945317 in words is "one billion, seven hundred ninety million, nine hundred forty-five thousand, three hundred seventeen".