7986906 has 48 divisors (see below), whose sum is σ = 18779904. Its totient is φ = 2443392.

The previous prime is 7986893. The next prime is 7986907. The reversal of 7986906 is 6096897.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7986907) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12855 + ... + 13461.

It is an arithmetic number, because the mean of its divisors is an integer number (391248).

Almost surely, 2^7986906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7986906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9389952).

7986906 is an abundant number, since it is smaller than the sum of its proper divisors (10792998).

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

7986906 is a wasteful number, since it uses less digits than its factorization.

7986906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675 (or 672 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 7986906 is about 2826.1114627700. Note that the first 3 decimals coincide. The cubic root of 7986906 is about 199.8908237469.

The spelling of 7986906 in words is "seven million, nine hundred eighty-six thousand, nine hundred six".