7986394 has 8 divisors (see below), whose sum is σ = 12901140. Its totient is φ = 3686016.

The previous prime is 7986389. The next prime is 7986401. The reversal of 7986394 is 4936897.

It can be written as a sum of positive squares in 2 ways, for example, as 6436369 + 1550025 = 2537^2 + 1245^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 153559 + ... + 153610.

Almost surely, 2^7986394 is an apocalyptic number.

7986394 is a deficient number, since it is larger than the sum of its proper divisors (4914746).

7986394 is a wasteful number, since it uses less digits than its factorization.

7986394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307184.

The product of its digits is 326592, while the sum is 46.

The square root of 7986394 is about 2826.0208774883. The cubic root of 7986394 is about 199.8865523270.

The spelling of 7986394 in words is "seven million, nine hundred eighty-six thousand, three hundred ninety-four".