1923384971 has 4 divisors (see below), whose sum is σ = 1927302744. Its totient is φ = 1919467200.

The previous prime is 1923384937. The next prime is 1923384973. The reversal of 1923384971 is 1794833291.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1923384971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1923384973) 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, 1958150 + ... + 1959131.

It is an arithmetic number, because the mean of its divisors is an integer number (481825686).

Almost surely, 2^1923384971 is an apocalyptic number.

1923384971 is a deficient number, since it is larger than the sum of its proper divisors (3917773).

1923384971 is an equidigital number, since it uses as much as digits as its factorization.

1923384971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3917772.

The product of its digits is 326592, while the sum is 47.

The square root of 1923384971 is about 43856.4131114253. The cubic root of 1923384971 is about 1243.6229827243.

The spelling of 1923384971 in words is "one billion, nine hundred twenty-three million, three hundred eighty-four thousand, nine hundred seventy-one".