8416445 has 8 divisors (see below), whose sum is σ = 10693944. Its totient is φ = 6337024.

The previous prime is 8416403. The next prime is 8416451. The reversal of 8416445 is 5446148.

It can be written as a sum of positive squares in 4 ways, for example, as 58564 + 8357881 = 242^2 + 2891^2 .

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 8416445 - 2⁶ = 8416381 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 49424 + ... + 49593.

It is an arithmetic number, because the mean of its divisors is an integer number (1336743).

Almost surely, 2^8416445 is an apocalyptic number.

8416445 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8416445 is a deficient number, since it is larger than the sum of its proper divisors (2277499).

8416445 is a wasteful number, since it uses less digits than its factorization.

8416445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99039.

The product of its digits is 15360, while the sum is 32.

The square root of 8416445 is about 2901.1109940849. The cubic root of 8416445 is about 203.4118407464.

It can be divided in two parts, 841 and 6445, that multiplied together give a palindrome (5420245).

The spelling of 8416445 in words is "eight million, four hundred sixteen thousand, four hundred forty-five".