7057986 has 32 divisors (see below), whose sum is σ = 15579648. Its totient is φ = 2117760.

The previous prime is 7057961. The next prime is 7057997. The reversal of 7057986 is 6897507.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2095 + ... + 4301.

It is an arithmetic number, because the mean of its divisors is an integer number (486864).

Almost surely, 2^7057986 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7057986, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7789824).

7057986 is an abundant number, since it is smaller than the sum of its proper divisors (8521662).

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

7057986 is a wasteful number, since it uses less digits than its factorization.

7057986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2266.

The product of its (nonzero) digits is 105840, while the sum is 42.

The square root of 7057986 is about 2656.6870346354. The cubic root of 7057986 is about 191.8198722960.

The spelling of 7057986 in words is "seven million, fifty-seven thousand, nine hundred eighty-six".