7926986 has 4 divisors (see below), whose sum is σ = 11890482. Its totient is φ = 3963492.

The previous prime is 7926977. The next prime is 7927013. The reversal of 7926986 is 6896297.

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

It can be written as a sum of positive squares in only one way, i.e., 7317025 + 609961 = 2705^2 + 781^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 7926986.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1981745 + ... + 1981748.

Almost surely, 2^7926986 is an apocalyptic number.

7926986 is a deficient number, since it is larger than the sum of its proper divisors (3963496).

7926986 is a wasteful number, since it uses less digits than its factorization.

7926986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3963495.

The product of its digits is 326592, while the sum is 47.

The square root of 7926986 is about 2815.4903658155. The cubic root of 7926986 is about 199.3896894999.

The spelling of 7926986 in words is "seven million, nine hundred twenty-six thousand, nine hundred eighty-six".