1963422793 has 4 divisors (see below), whose sum is σ = 1963518340. Its totient is φ = 1963327248.

The previous prime is 1963422781. The next prime is 1963422809. The reversal of 1963422793 is 3972243691.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3972243691 = 13 ⋅305557207.

It can be written as a sum of positive squares in 2 ways, for example, as 1408726089 + 554696704 = 37533^2 + 23552^2 .

It is a cyclic number.

It is not a de Polignac number, because 1963422793 - 2⁹ = 1963422281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1963422743) 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, 2898 + ... + 62731.

It is an arithmetic number, because the mean of its divisors is an integer number (490879585).

Almost surely, 2^1963422793 is an apocalyptic number.

It is an amenable number.

1963422793 is a deficient number, since it is larger than the sum of its proper divisors (95547).

1963422793 is an equidigital number, since it uses as much as digits as its factorization.

1963422793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95546.

The product of its digits is 489888, while the sum is 46.

The square root of 1963422793 is about 44310.5268869599. The cubic root of 1963422793 is about 1252.1930128125.

The spelling of 1963422793 in words is "one billion, nine hundred sixty-three million, four hundred twenty-two thousand, seven hundred ninety-three".