855609467 has 2 divisors, whose sum is σ = 855609468. Its totient is φ = 855609466.

The previous prime is 855609449. The next prime is 855609529. The reversal of 855609467 is 764906558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 855609467 - 2¹² = 855605371 is a prime.

It is not a weakly prime, because it can be changed into another prime (855609437) 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, 427804733 + 427804734.

It is an arithmetic number, because the mean of its divisors is an integer number (427804734).

Almost surely, 2^855609467 is an apocalyptic number.

855609467 is a deficient number, since it is larger than the sum of its proper divisors (1).

855609467 is an equidigital number, since it uses as much as digits as its factorization.

855609467 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 50.

The square root of 855609467 is about 29250.8028436828. The cubic root of 855609467 is about 949.3474621354.

The spelling of 855609467 in words is "eight hundred fifty-five million, six hundred nine thousand, four hundred sixty-seven".