855601927 has 2 divisors, whose sum is σ = 855601928. Its totient is φ = 855601926.

The previous prime is 855601919. The next prime is 855601961. The reversal of 855601927 is 729106558.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 855601927 - 2³ = 855601919 is a prime.

It is a super-3 number, since 3×855601927³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (855601907) 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, 427800963 + 427800964.

It is an arithmetic number, because the mean of its divisors is an integer number (427800964).

Almost surely, 2^855601927 is an apocalyptic number.

855601927 is a deficient number, since it is larger than the sum of its proper divisors (1).

855601927 is an equidigital number, since it uses as much as digits as its factorization.

855601927 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 855601927 is about 29250.6739580475. The cubic root of 855601927 is about 949.3446734407.

The spelling of 855601927 in words is "eight hundred fifty-five million, six hundred one thousand, nine hundred twenty-seven".