855377 has 2 divisors, whose sum is σ = 855378. Its totient is φ = 855376.

The previous prime is 855373. The next prime is 855391. The reversal of 855377 is 773558.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 844561 + 10816 = 919^2 + 104^2 .

It is a cyclic number.

It is not a de Polignac number, because 855377 - 2² = 855373 is a prime.

It is not a weakly prime, because it can be changed into another prime (855373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427688 + 427689.

It is an arithmetic number, because the mean of its divisors is an integer number (427689).

2⁸⁵⁵³⁷⁷ is an apocalyptic number.

It is an amenable number.

855377 is a deficient number, since it is larger than the sum of its proper divisors (1).

855377 is an equidigital number, since it uses as much as digits as its factorization.

855377 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29400, while the sum is 35.

The square root of 855377 is about 924.8659362308. The cubic root of 855377 is about 94.9261475886.

The spelling of 855377 in words is "eight hundred fifty-five thousand, three hundred seventy-seven".