1992051793 has 4 divisors (see below), whose sum is σ = 1999457460. Its totient is φ = 1984646128.

The previous prime is 1992051767. The next prime is 1992051811. The reversal of 1992051793 is 3971502991.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1108357264 + 883694529 = 33292^2 + 29727^2 .

It is a cyclic number.

It is not a de Polignac number, because 1992051793 - 2²⁵ = 1958497361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1992051703) 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, 3702430 + ... + 3702967.

It is an arithmetic number, because the mean of its divisors is an integer number (499864365).

Almost surely, 2^1992051793 is an apocalyptic number.

It is an amenable number.

1992051793 is a deficient number, since it is larger than the sum of its proper divisors (7405667).

1992051793 is an equidigital number, since it uses as much as digits as its factorization.

1992051793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7405666.

The product of its (nonzero) digits is 153090, while the sum is 46.

The square root of 1992051793 is about 44632.4074300278. The cubic root of 1992051793 is about 1258.2498151645.

The spelling of 1992051793 in words is "one billion, nine hundred ninety-two million, fifty-one thousand, seven hundred ninety-three".