7986393 has 6 divisors (see below), whose sum is σ = 11535914. Its totient is φ = 5324256.

The previous prime is 7986389. The next prime is 7986401. The reversal of 7986393 is 3936897.

It is a happy number.

7986393 is a `hidden beast` number, since 7 + 9 + 8 + 639 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7767369 + 219024 = 2787^2 + 468^2 .

It is not a de Polignac number, because 7986393 - 2² = 7986389 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7986353) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 443680 + ... + 443697.

Almost surely, 2^7986393 is an apocalyptic number.

It is an amenable number.

7986393 is a deficient number, since it is larger than the sum of its proper divisors (3549521).

7986393 is a wasteful number, since it uses less digits than its factorization.

7986393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887383 (or 887380 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 7986393 is about 2826.0207005611. The cubic root of 7986393 is about 199.8865439842.

The spelling of 7986393 in words is "seven million, nine hundred eighty-six thousand, three hundred ninety-three".