8190906 has 32 divisors (see below), whose sum is σ = 17506368. Its totient is φ = 2545920.

The previous prime is 8190901. The next prime is 8190907. The reversal of 8190906 is 6090918.

It is a happy number.

It is a super-2 number, since 2×8190906² = 134181882201672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8190901) 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 15 ways as a sum of consecutive naturals, for example, 13056 + ... + 13668.

It is an arithmetic number, because the mean of its divisors is an integer number (547074).

Almost surely, 2^8190906 is an apocalyptic number.

8190906 is an abundant number, since it is smaller than the sum of its proper divisors (9315462).

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

8190906 is a wasteful number, since it uses less digits than its factorization.

8190906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 8190906 is about 2861.9758908838. The cubic root of 8190906 is about 201.5783939273.

The spelling of 8190906 in words is "eight million, one hundred ninety thousand, nine hundred six".