8406535 has 4 divisors (see below), whose sum is σ = 10087848. Its totient is φ = 6725224.

The previous prime is 8406529. The next prime is 8406539. The reversal of 8406535 is 5356048.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8406535 - 2³ = 8406527 is a prime.

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 a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8406497 and 8406506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8406539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840649 + ... + 840658.

It is an arithmetic number, because the mean of its divisors is an integer number (2521962).

Almost surely, 2^8406535 is an apocalyptic number.

8406535 is a deficient number, since it is larger than the sum of its proper divisors (1681313).

8406535 is a wasteful number, since it uses less digits than its factorization.

8406535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681312.

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

The square root of 8406535 is about 2899.4025246592. The cubic root of 8406535 is about 203.3319731761.

It can be divided in two parts, 84065 and 35, that added together give a square (84100 = 290²).

The spelling of 8406535 in words is "eight million, four hundred six thousand, five hundred thirty-five".