8225405 has 8 divisors (see below), whose sum is σ = 9898200. Its totient is φ = 6561856.

The previous prime is 8225381. The next prime is 8225407. The reversal of 8225405 is 5045228.

8225405 is nontrivially palindromic in base 4.

8225405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2208196 + 6017209 = 1486^2 + 2453^2 .

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 8225405 - 2⁸ = 8225149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8225407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170 + ... + 4059.

It is an arithmetic number, because the mean of its divisors is an integer number (1237275).

Almost surely, 2^8225405 is an apocalyptic number.

It is an amenable number.

8225405 is a deficient number, since it is larger than the sum of its proper divisors (1672795).

8225405 is a wasteful number, since it uses less digits than its factorization.

8225405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4623.

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 8225405 is about 2867.9966875853. The cubic root of 8225405 is about 201.8610045987.

The spelling of 8225405 in words is "eight million, two hundred twenty-five thousand, four hundred five".