7866345 has 24 divisors (see below), whose sum is σ = 13220928. Its totient is φ = 3986400.

The previous prime is 7866329. The next prime is 7866347. The reversal of 7866345 is 5436687.

7866345 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7866345 - 2⁴ = 7866329 is a prime.

It is a d-powerful number, because it can be written as 7⁶ + 8³ + 6⁷ + 6⁸ + 3¹³ + 4¹¹ + 5 .

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52020 + ... + 52170.

It is an arithmetic number, because the mean of its divisors is an integer number (550872).

Almost surely, 2^7866345 is an apocalyptic number.

It is an amenable number.

7866345 is a deficient number, since it is larger than the sum of its proper divisors (5354583).

7866345 is a wasteful number, since it uses less digits than its factorization.

7866345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 182 counting only the distinct ones).

The product of its digits is 120960, while the sum is 39.

The square root of 7866345 is about 2804.7005187720. The cubic root of 7866345 is about 198.8799474542.

The spelling of 7866345 in words is "seven million, eight hundred sixty-six thousand, three hundred forty-five".