1963796847 has 4 divisors (see below), whose sum is σ = 2618395800. Its totient is φ = 1309197896.

The previous prime is 1963796839. The next prime is 1963796899. The reversal of 1963796847 is 7486973691.

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

It is a cyclic number.

It is not a de Polignac number, because 1963796847 - 2³ = 1963796839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1963796447) 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, 327299472 + ... + 327299477.

It is an arithmetic number, because the mean of its divisors is an integer number (654598950).

Almost surely, 2^1963796847 is an apocalyptic number.

1963796847 is a deficient number, since it is larger than the sum of its proper divisors (654598953).

1963796847 is an equidigital number, since it uses as much as digits as its factorization.

1963796847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654598952.

The product of its digits is 13716864, while the sum is 60.

The square root of 1963796847 is about 44314.7475114098. The cubic root of 1963796847 is about 1252.2725266876.

The spelling of 1963796847 in words is "one billion, nine hundred sixty-three million, seven hundred ninety-six thousand, eight hundred forty-seven".