7940713 has 4 divisors (see below), whose sum is σ = 8662608. Its totient is φ = 7218820.

The previous prime is 7940707. The next prime is 7940719. The reversal of 7940713 is 3170497.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3170497 = 11 ⋅288227.

It is an interprime number because it is at equal distance from previous prime (7940707) and next prime (7940719).

It is a cyclic number.

It is not a de Polignac number, because 7940713 - 2¹³ = 7932521 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7940719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360931 + ... + 360952.

It is an arithmetic number, because the mean of its divisors is an integer number (2165652).

Almost surely, 2^7940713 is an apocalyptic number.

It is an amenable number.

7940713 is a deficient number, since it is larger than the sum of its proper divisors (721895).

7940713 is a wasteful number, since it uses less digits than its factorization.

7940713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721894.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 7940713 is about 2817.9270749968. The cubic root of 7940713 is about 199.5047161487.

The spelling of 7940713 in words is "seven million, nine hundred forty thousand, seven hundred thirteen".