7986913 has 8 divisors (see below), whose sum is σ = 8856576. Its totient is φ = 7141200.

The previous prime is 7986907. The next prime is 7986917. The reversal of 7986913 is 3196897.

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

It is not a de Polignac number, because 7986913 - 2⁹ = 7986401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7986913.

It is not an unprimeable number, because it can be changed into a prime (7986917) 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, 5281 + ... + 6622.

It is an arithmetic number, because the mean of its divisors is an integer number (1107072).

Almost surely, 2^7986913 is an apocalyptic number.

It is an amenable number.

7986913 is a deficient number, since it is larger than the sum of its proper divisors (869663).

7986913 is a wasteful number, since it uses less digits than its factorization.

7986913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11975.

The product of its digits is 81648, while the sum is 43.

The square root of 7986913 is about 2826.1127012205. The cubic root of 7986913 is about 199.8908821440.

The spelling of 7986913 in words is "seven million, nine hundred eighty-six thousand, nine hundred thirteen".