4321845 has 24 divisors (see below), whose sum is σ = 8173152. Its totient is φ = 2095200.

The previous prime is 4321831. The next prime is 4321871. The reversal of 4321845 is 5481234.

It is not a de Polignac number, because 4321845 - 2⁴ = 4321829 is a prime.

It is a super-3 number, since 3×4321845³ (a number of 21 digits) contains 333 as substring.

4321845 is a lucky number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 3871 + ... + 4860.

It is an arithmetic number, because the mean of its divisors is an integer number (340548).

Almost surely, 2^4321845 is an apocalyptic number.

4321845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4321845 is a deficient number, since it is larger than the sum of its proper divisors (3851307).

4321845 is a wasteful number, since it uses less digits than its factorization.

4321845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8753 (or 8750 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 4321845 is about 2078.9047597233. The cubic root of 4321845 is about 162.8882393462. Note that the first 3 decimals are identical.

The spelling of 4321845 in words is "four million, three hundred twenty-one thousand, eight hundred forty-five".