1920793827 has 4 divisors (see below), whose sum is σ = 2561058440. Its totient is φ = 1280529216.

The previous prime is 1920793813. The next prime is 1920793837. The reversal of 1920793827 is 7283970291.

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

It is not a de Polignac number, because 1920793827 - 2⁴ = 1920793811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1920793837) 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, 320132302 + ... + 320132307.

It is an arithmetic number, because the mean of its divisors is an integer number (640264610).

Almost surely, 2^1920793827 is an apocalyptic number.

1920793827 is a deficient number, since it is larger than the sum of its proper divisors (640264613).

1920793827 is an equidigital number, since it uses as much as digits as its factorization.

1920793827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640264612.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 1920793827 is about 43826.8619342065. The cubic root of 1920793827 is about 1243.0642707979.

The spelling of 1920793827 in words is "one billion, nine hundred twenty million, seven hundred ninety-three thousand, eight hundred twenty-seven".