8256406 has 8 divisors (see below), whose sum is σ = 12479544. Its totient is φ = 4096560.

The previous prime is 8256403. The next prime is 8256427. The reversal of 8256406 is 6046528.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8256403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15495 + ... + 16018.

It is an arithmetic number, because the mean of its divisors is an integer number (1559943).

Almost surely, 2^8256406 is an apocalyptic number.

8256406 is a deficient number, since it is larger than the sum of its proper divisors (4223138).

8256406 is a wasteful number, since it uses less digits than its factorization.

8256406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31646.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 8256406 is about 2873.3962483445. The cubic root of 8256406 is about 202.1142868611.

The spelling of 8256406 in words is "eight million, two hundred fifty-six thousand, four hundred six".