8066840 has 32 divisors (see below), whose sum is σ = 19219680. Its totient is φ = 3036672.

The previous prime is 8066827. The next prime is 8066879. The reversal of 8066840 is 486608.

It is a junction number, because it is equal to n+sod(n) for n = 8066797 and 8066806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5252 + ... + 6611.

It is an arithmetic number, because the mean of its divisors is an integer number (600615).

Almost surely, 2^8066840 is an apocalyptic number.

It is an amenable number.

8066840 is an abundant number, since it is smaller than the sum of its proper divisors (11152840).

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

8066840 is a wasteful number, since it uses less digits than its factorization.

8066840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11891 (or 11887 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 8066840 is about 2840.2183014691. The cubic root of 8066840 is about 200.5554559155. Note that the first 3 decimals are identical.

It can be divided in two parts, 80668 and 40, that added together give a palindrome (80708).

The spelling of 8066840 in words is "eight million, sixty-six thousand, eight hundred forty".