856031105 has 16 divisors (see below), whose sum is σ = 1033572864. Its totient is φ = 680616000.

The previous prime is 856031101. The next prime is 856031119. The reversal of 856031105 is 501130658.

It is not a de Polignac number, because 856031105 - 2² = 856031101 is a prime.

It is a super-3 number, since 3×856031105³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (856031101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1039724 + ... + 1040546.

It is an arithmetic number, because the mean of its divisors is an integer number (64598304).

Almost surely, 2^856031105 is an apocalyptic number.

It is an amenable number.

856031105 is a deficient number, since it is larger than the sum of its proper divisors (177541759).

856031105 is a wasteful number, since it uses less digits than its factorization.

856031105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 856031105 is about 29258.0092453331. The cubic root of 856031105 is about 949.5033803227.

The spelling of 856031105 in words is "eight hundred fifty-six million, thirty-one thousand, one hundred five".