8102855 has 4 divisors (see below), whose sum is σ = 9723432. Its totient is φ = 6482280.

The previous prime is 8102851. The next prime is 8102867. The reversal of 8102855 is 5582018.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 8102855 - 2² = 8102851 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8102851) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810281 + ... + 810290.

It is an arithmetic number, because the mean of its divisors is an integer number (2430858).

Almost surely, 2^8102855 is an apocalyptic number.

8102855 is a deficient number, since it is larger than the sum of its proper divisors (1620577).

8102855 is a wasteful number, since it uses less digits than its factorization.

8102855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620576.

The product of its (nonzero) digits is 3200, while the sum is 29.

The square root of 8102855 is about 2846.5514223355. The cubic root of 8102855 is about 200.8534776983.

The spelling of 8102855 in words is "eight million, one hundred two thousand, eight hundred fifty-five".