855628567 has 2 divisors, whose sum is σ = 855628568. Its totient is φ = 855628566.

The previous prime is 855628531. The next prime is 855628583. The reversal of 855628567 is 765826558.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-855628567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (855628507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427814283 + 427814284.

It is an arithmetic number, because the mean of its divisors is an integer number (427814284).

Almost surely, 2^855628567 is an apocalyptic number.

855628567 is a deficient number, since it is larger than the sum of its proper divisors (1).

855628567 is an equidigital number, since it uses as much as digits as its factorization.

855628567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4032000, while the sum is 52.

The square root of 855628567 is about 29251.1293286259. The cubic root of 855628567 is about 949.3545262624.

The spelling of 855628567 in words is "eight hundred fifty-five million, six hundred twenty-eight thousand, five hundred sixty-seven".