7866340 has 24 divisors (see below), whose sum is σ = 16595712. Its totient is φ = 3132000.

The previous prime is 7866329. The next prime is 7866347. The reversal of 7866340 is 436687.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 7⁶ + 8³ + 6⁷ + 6⁸ + 3¹³ + 4¹¹ + 0 .

It is a junction number, because it is equal to n+sod(n) for n = 7866296 and 7866305.

It is not an unprimeable number, because it can be changed into a prime (7866347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4237 + ... + 5803.

It is an arithmetic number, because the mean of its divisors is an integer number (691488).

Almost surely, 2^7866340 is an apocalyptic number.

It is an amenable number.

7866340 is an abundant number, since it is smaller than the sum of its proper divisors (8729372).

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

7866340 is a wasteful number, since it uses less digits than its factorization.

7866340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1827 (or 1825 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 7866340 is about 2804.6996274111. The cubic root of 7866340 is about 198.8799053169.

The spelling of 7866340 in words is "seven million, eight hundred sixty-six thousand, three hundred forty".