7313986 has 4 divisors (see below), whose sum is σ = 10970982. Its totient is φ = 3656992.

The previous prime is 7313983. The next prime is 7314037. The reversal of 7313986 is 6893137.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6893137 = 37 ⋅186301.

It can be written as a sum of positive squares in only one way, i.e., 5909761 + 1404225 = 2431^2 + 1185^2 .

It is not an unprimeable number, because it can be changed into a prime (7313981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1828495 + ... + 1828498.

Almost surely, 2^7313986 is an apocalyptic number.

7313986 is a deficient number, since it is larger than the sum of its proper divisors (3656996).

7313986 is a wasteful number, since it uses less digits than its factorization.

7313986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3656995.

The product of its digits is 27216, while the sum is 37.

The square root of 7313986 is about 2704.4382041378. The cubic root of 7313986 is about 194.1115488424. Note that the first 3 decimals are identical.

The spelling of 7313986 in words is "seven million, three hundred thirteen thousand, nine hundred eighty-six".