8452405 has 16 divisors (see below), whose sum is σ = 11032560. Its totient is φ = 6179328.

The previous prime is 8452403. The next prime is 8452439. The reversal of 8452405 is 5042548.

8452405 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 8 ways, for example, as 209764 + 8242641 = 458^2 + 2871^2 .

It is a cyclic number.

It is not a de Polignac number, because 8452405 - 2¹ = 8452403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8452403) 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, 6489 + ... + 7681.

It is an arithmetic number, because the mean of its divisors is an integer number (689535).

Almost surely, 2^8452405 is an apocalyptic number.

It is an amenable number.

8452405 is a deficient number, since it is larger than the sum of its proper divisors (2580155).

8452405 is a wasteful number, since it uses less digits than its factorization.

8452405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 8452405 is about 2907.3020138954. The cubic root of 8452405 is about 203.7011274503.

The spelling of 8452405 in words is "eight million, four hundred fifty-two thousand, four hundred five".