855059743 has 2 divisors, whose sum is σ = 855059744. Its totient is φ = 855059742.

The previous prime is 855059729. The next prime is 855059771. The reversal of 855059743 is 347950558.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-855059743 is a prime.

It is a super-2 number, since 2×855059743² = 1462254328198452098, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 855059693 and 855059702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (855059243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427529871 + 427529872.

It is an arithmetic number, because the mean of its divisors is an integer number (427529872).

Almost surely, 2^855059743 is an apocalyptic number.

855059743 is a deficient number, since it is larger than the sum of its proper divisors (1).

855059743 is an equidigital number, since it uses as much as digits as its factorization.

855059743 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 756000, while the sum is 46.

The square root of 855059743 is about 29241.4046003266. The cubic root of 855059743 is about 949.1441018750.

The spelling of 855059743 in words is "eight hundred fifty-five million, fifty-nine thousand, seven hundred forty-three".