855427763 has 2 divisors, whose sum is σ = 855427764. Its totient is φ = 855427762.

The previous prime is 855427759. The next prime is 855427817. The reversal of 855427763 is 367724558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 855427763 - 2² = 855427759 is a prime.

It is a super-2 number, since 2×855427763² = 1463513315422368338, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (855427723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427713881 + 427713882.

It is an arithmetic number, because the mean of its divisors is an integer number (427713882).

Almost surely, 2^855427763 is an apocalyptic number.

855427763 is a deficient number, since it is larger than the sum of its proper divisors (1).

855427763 is an equidigital number, since it uses as much as digits as its factorization.

855427763 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1411200, while the sum is 47.

The square root of 855427763 is about 29247.6967127328. The cubic root of 855427763 is about 949.2802537300.

The spelling of 855427763 in words is "eight hundred fifty-five million, four hundred twenty-seven thousand, seven hundred sixty-three".