1956798343 has 2 divisors, whose sum is σ = 1956798344. Its totient is φ = 1956798342.

The previous prime is 1956798313. The next prime is 1956798383. The reversal of 1956798343 is 3438976591.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1956798343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1956798313) 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 as a sum of consecutive naturals, namely, 978399171 + 978399172.

It is an arithmetic number, because the mean of its divisors is an integer number (978399172).

Almost surely, 2^1956798343 is an apocalyptic number.

1956798343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1956798343 is an equidigital number, since it uses as much as digits as its factorization.

1956798343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 55.

The square root of 1956798343 is about 44235.7134338308. The cubic root of 1956798343 is about 1250.7831557379.

The spelling of 1956798343 in words is "one billion, nine hundred fifty-six million, seven hundred ninety-eight thousand, three hundred forty-three".