855315 has 24 divisors (see below), whose sum is σ = 1506960. Its totient is φ = 448704.

The previous prime is 855311. The next prime is 855317. The reversal of 855315 is 513558.

It is not a de Polignac number, because 855315 - 2² = 855311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3621 + ... + 3849.

It is an arithmetic number, because the mean of its divisors is an integer number (62790).

2⁸⁵⁵³¹⁵ is an apocalyptic number.

855315 is a deficient number, since it is larger than the sum of its proper divisors (651645).

855315 is a wasteful number, since it uses less digits than its factorization.

855315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323 (or 320 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 855315 is about 924.8324172519. The cubic root of 855315 is about 94.9238540333.

The spelling of 855315 in words is "eight hundred fifty-five thousand, three hundred fifteen".