855607 has 2 divisors, whose sum is σ = 855608. Its totient is φ = 855606.

The previous prime is 855601. The next prime is 855619. The reversal of 855607 is 706558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 855607 - 2¹⁵ = 822839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (855601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427803 + 427804.

It is an arithmetic number, because the mean of its divisors is an integer number (427804).

2⁸⁵⁵⁶⁰⁷ is an apocalyptic number.

855607 is a deficient number, since it is larger than the sum of its proper divisors (1).

855607 is an equidigital number, since it uses as much as digits as its factorization.

855607 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 855607 is about 924.9902702191. The cubic root of 855607 is about 94.9346549709.

The spelling of 855607 in words is "eight hundred fifty-five thousand, six hundred seven".