8166740 has 12 divisors (see below), whose sum is σ = 17150196. Its totient is φ = 3266688.

The previous prime is 8166737. The next prime is 8166757. The reversal of 8166740 is 476618.

It can be written as a sum of positive squares in 2 ways, for example, as 6492304 + 1674436 = 2548^2 + 1294^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 8166697 and 8166706.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 204149 + ... + 204188.

It is an arithmetic number, because the mean of its divisors is an integer number (1429183).

Almost surely, 2^8166740 is an apocalyptic number.

It is an amenable number.

8166740 is an abundant number, since it is smaller than the sum of its proper divisors (8983456).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8166740 is a wasteful number, since it uses less digits than its factorization.

8166740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408346 (or 408344 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 8166740 is about 2857.7508638788. The cubic root of 8166740 is about 201.3799566990.

The spelling of 8166740 in words is "eight million, one hundred sixty-six thousand, seven hundred forty".