8355406 has 4 divisors (see below), whose sum is σ = 12533112. Its totient is φ = 4177702.

The previous prime is 8355401. The next prime is 8355407. The reversal of 8355406 is 6045538.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6045538 = 2 ⋅3022769.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8355401) 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 as a sum of consecutive naturals, namely, 2088850 + ... + 2088853.

It is an arithmetic number, because the mean of its divisors is an integer number (3133278).

Almost surely, 2^8355406 is an apocalyptic number.

8355406 is a deficient number, since it is larger than the sum of its proper divisors (4177706).

8355406 is a wasteful number, since it uses less digits than its factorization.

8355406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4177705.

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 8355406 is about 2890.5719157288. The cubic root of 8355406 is about 202.9189092668.

It can be divided in two parts, 835 and 5406, that added together give a square (6241 = 79²).

The spelling of 8355406 in words is "eight million, three hundred fifty-five thousand, four hundred six".