856377105 has 16 divisors (see below), whose sum is σ = 1417452480. Its totient is φ = 440984768.

The previous prime is 856377097. The next prime is 856377107. The reversal of 856377105 is 501773658.

It is a cyclic number.

It is not a de Polignac number, because 856377105 - 2³ = 856377097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (856377107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 983907 + ... + 984776.

It is an arithmetic number, because the mean of its divisors is an integer number (88590780).

Almost surely, 2^856377105 is an apocalyptic number.

It is an amenable number.

856377105 is a deficient number, since it is larger than the sum of its proper divisors (561075375).

856377105 is a wasteful number, since it uses less digits than its factorization.

856377105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1968720.

The product of its (nonzero) digits is 176400, while the sum is 42.

The square root of 856377105 is about 29263.9215588068. The cubic root of 856377105 is about 949.6312899726.

The spelling of 856377105 in words is "eight hundred fifty-six million, three hundred seventy-seven thousand, one hundred five".