8404255 has 16 divisors (see below), whose sum is σ = 10598400. Its totient is φ = 6389280.

The previous prime is 8404247. The next prime is 8404259. The reversal of 8404255 is 5524048.

It is not a de Polignac number, because 8404255 - 2³ = 8404247 is a prime.

It is an Ulam number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8404259) 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, 8686 + ... + 9604.

It is an arithmetic number, because the mean of its divisors is an integer number (662400).

Almost surely, 2^8404255 is an apocalyptic number.

8404255 is a deficient number, since it is larger than the sum of its proper divisors (2194145).

8404255 is a wasteful number, since it uses less digits than its factorization.

8404255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014.

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

The square root of 8404255 is about 2899.0093135414. The cubic root of 8404255 is about 203.3135891127.

The spelling of 8404255 in words is "eight million, four hundred four thousand, two hundred fifty-five".