8102705 has 24 divisors (see below), whose sum is σ = 10821888. Its totient is φ = 5818176.

The previous prime is 8102681. The next prime is 8102713. The reversal of 8102705 is 5072018.

It is not a de Polignac number, because 8102705 - 2¹⁴ = 8086321 is a prime.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 36224 + ... + 36446.

It is an arithmetic number, because the mean of its divisors is an integer number (450912).

Almost surely, 2^8102705 is an apocalyptic number.

It is an amenable number.

8102705 is a deficient number, since it is larger than the sum of its proper divisors (2719183).

8102705 is a wasteful number, since it uses less digits than its factorization.

8102705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 8102705 is about 2846.5250745426. The cubic root of 8102705 is about 200.8522382912.

The spelling of 8102705 in words is "eight million, one hundred two thousand, seven hundred five".