855002783 has 2 divisors, whose sum is σ = 855002784. Its totient is φ = 855002782.

The previous prime is 855002749. The next prime is 855002801. The reversal of 855002783 is 387200558.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 855002783 - 2¹⁶ = 854937247 is a prime.

It is equal to p_43825187 and since 855002783 and 43825187 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (855008783) 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, 427501391 + 427501392.

It is an arithmetic number, because the mean of its divisors is an integer number (427501392).

Almost surely, 2^855002783 is an apocalyptic number.

855002783 is a deficient number, since it is larger than the sum of its proper divisors (1).

855002783 is an equidigital number, since it uses as much as digits as its factorization.

855002783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 38.

The square root of 855002783 is about 29240.4306226841. The cubic root of 855002783 is about 949.1230255899.

The spelling of 855002783 in words is "eight hundred fifty-five million, two thousand, seven hundred eighty-three".