8209134 has 32 divisors (see below), whose sum is σ = 18341280. Its totient is φ = 2721600.

The previous prime is 8209133. The next prime is 8209151. The reversal of 8209134 is 4319028.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 8209098 and 8209107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8209133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14904 + ... + 15444.

It is an arithmetic number, because the mean of its divisors is an integer number (573165).

Almost surely, 2^8209134 is an apocalyptic number.

8209134 is an abundant number, since it is smaller than the sum of its proper divisors (10132146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8209134 is a wasteful number, since it uses less digits than its factorization.

8209134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 8209134 is about 2865.1586343517. The cubic root of 8209134 is about 201.7278136490.

The spelling of 8209134 in words is "eight million, two hundred nine thousand, one hundred thirty-four".