8436845 has 8 divisors (see below), whose sum is σ = 10719864. Its totient is φ = 6352384.

The previous prime is 8436821. The next prime is 8436877. The reversal of 8436845 is 5486348.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 808201 + 7628644 = 899^2 + 2762^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8436845 - 2⁶ = 8436781 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8436799 and 8436808.

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 7 ways as a sum of consecutive naturals, for example, 49544 + ... + 49713.

It is an arithmetic number, because the mean of its divisors is an integer number (1339983).

Almost surely, 2^8436845 is an apocalyptic number.

8436845 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8436845 is a deficient number, since it is larger than the sum of its proper divisors (2283019).

8436845 is a wasteful number, since it uses less digits than its factorization.

8436845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99279.

The product of its digits is 92160, while the sum is 38.

The square root of 8436845 is about 2904.6247606188. The cubic root of 8436845 is about 203.5760531274.

The spelling of 8436845 in words is "eight million, four hundred thirty-six thousand, eight hundred forty-five".