1992048317 has 4 divisors (see below), whose sum is σ = 2276626656. Its totient is φ = 1707469980.

The previous prime is 1992048299. The next prime is 1992048343. The reversal of 1992048317 is 7138402991.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7138402991 = 31307 ⋅228013.

It is a cyclic number.

It is not a de Polignac number, because 1992048317 - 2²⁰ = 1990999741 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 (1992048347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142289159 + ... + 142289172.

It is an arithmetic number, because the mean of its divisors is an integer number (569156664).

Almost surely, 2^1992048317 is an apocalyptic number.

It is an amenable number.

1992048317 is a deficient number, since it is larger than the sum of its proper divisors (284578339).

1992048317 is an equidigital number, since it uses as much as digits as its factorization.

1992048317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284578338.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 1992048317 is about 44632.3684896959. The cubic root of 1992048317 is about 1258.2490833096.

The spelling of 1992048317 in words is "one billion, nine hundred ninety-two million, forty-eight thousand, three hundred seventeen".