7874845 has 16 divisors (see below), whose sum is σ = 10467648. Its totient is φ = 5639040.

The previous prime is 7874827. The next prime is 7874849. The reversal of 7874845 is 5484787.

It is not a de Polignac number, because 7874845 - 2¹¹ = 7872797 is a prime.

It is a Duffinian number.

7874845 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7874849) 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 15 ways as a sum of consecutive naturals, for example, 2617 + ... + 4753.

It is an arithmetic number, because the mean of its divisors is an integer number (654228).

Almost surely, 2^7874845 is an apocalyptic number.

It is an amenable number.

7874845 is a deficient number, since it is larger than the sum of its proper divisors (2592803).

7874845 is a wasteful number, since it uses less digits than its factorization.

7874845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2220.

The product of its digits is 250880, while the sum is 43.

The square root of 7874845 is about 2806.2154229496. The cubic root of 7874845 is about 198.9515550871.

The spelling of 7874845 in words is "seven million, eight hundred seventy-four thousand, eight hundred forty-five".