7986939 has 8 divisors (see below), whose sum is σ = 10731072. Its totient is φ = 5283720.

The previous prime is 7986917. The next prime is 7986947. The reversal of 7986939 is 9396897.

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

It is not a de Polignac number, because 7986939 - 2⁵ = 7986907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7986891 and 7986900.

It is not an unprimeable number, because it can be changed into a prime (7986959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9769 + ... + 10554.

It is an arithmetic number, because the mean of its divisors is an integer number (1341384).

Almost surely, 2^7986939 is an apocalyptic number.

7986939 is a deficient number, since it is larger than the sum of its proper divisors (2744133).

7986939 is a wasteful number, since it uses less digits than its factorization.

7986939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20457.

The product of its digits is 734832, while the sum is 51.

The square root of 7986939 is about 2826.1173011749. The cubic root of 7986939 is about 199.8910990470.

The spelling of 7986939 in words is "seven million, nine hundred eighty-six thousand, nine hundred thirty-nine".