855715 has 16 divisors (see below), whose sum is σ = 1225728. Its totient is φ = 560736.

The previous prime is 855713. The next prime is 855719. The reversal of 855715 is 517558.

855715 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 855715 - 2¹ = 855713 is a prime.

It is a super-2 number, since 2×855715² = 1464496322450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (855713) 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, 274 + ... + 1336.

It is an arithmetic number, because the mean of its divisors is an integer number (76608).

2⁸⁵⁵⁷¹⁵ is an apocalyptic number.

855715 is a deficient number, since it is larger than the sum of its proper divisors (370013).

855715 is a wasteful number, since it uses less digits than its factorization.

855715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098.

The product of its digits is 7000, while the sum is 31.

The square root of 855715 is about 925.0486473694. The cubic root of 855715 is about 94.9386492157.

The spelling of 855715 in words is "eight hundred fifty-five thousand, seven hundred fifteen".