855474377 has 2 divisors, whose sum is σ = 855474378. Its totient is φ = 855474376.

The previous prime is 855474359. The next prime is 855474457. The reversal of 855474377 is 773474558.

It is a happy number.

855474377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 569729161 + 285745216 = 23869^2 + 16904^2 .

It is a cyclic number.

It is not a de Polignac number, because 855474377 - 2⁶ = 855474313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (855474337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427737188 + 427737189.

It is an arithmetic number, because the mean of its divisors is an integer number (427737189).

Almost surely, 2^855474377 is an apocalyptic number.

It is an amenable number.

855474377 is a deficient number, since it is larger than the sum of its proper divisors (1).

855474377 is an equidigital number, since it uses as much as digits as its factorization.

855474377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3292800, while the sum is 50.

The square root of 855474377 is about 29248.4935851404. The cubic root of 855474377 is about 949.2974961546.

The spelling of 855474377 in words is "eight hundred fifty-five million, four hundred seventy-four thousand, three hundred seventy-seven".