780713 has 4 divisors (see below), whose sum is σ = 783300. Its totient is φ = 778128.

The previous prime is 780707. The next prime is 780719. The reversal of 780713 is 317087.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (780707) and next prime (780719).

It can be written as a sum of positive squares in 2 ways, for example, as 597529 + 183184 = 773^2 + 428^2 .

It is a cyclic number.

It is not a de Polignac number, because 780713 - 2⁴ = 780697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (780719) 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, 770 + ... + 1467.

It is an arithmetic number, because the mean of its divisors is an integer number (195825).

2⁷⁸⁰⁷¹³ is an apocalyptic number.

It is an amenable number.

780713 is a deficient number, since it is larger than the sum of its proper divisors (2587).

780713 is a wasteful number, since it uses less digits than its factorization.

780713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586.

The product of its (nonzero) digits is 1176, while the sum is 26.

The square root of 780713 is about 883.5796511917. The cubic root of 780713 is about 92.0796804968.

The spelling of 780713 in words is "seven hundred eighty thousand, seven hundred thirteen".