220713 has 4 divisors (see below), whose sum is σ = 294288. Its totient is φ = 147140.

The previous prime is 220709. The next prime is 220721. The reversal of 220713 is 317022.

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.

It is a cyclic number.

It is not a de Polignac number, because 220713 - 2² = 220709 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 220692 and 220701.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 220713.

It is not an unprimeable number, because it can be changed into a prime (220783) 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, 36783 + ... + 36788.

It is an arithmetic number, because the mean of its divisors is an integer number (73572).

2²²⁰⁷¹³ is an apocalyptic number.

It is an amenable number.

220713 is a deficient number, since it is larger than the sum of its proper divisors (73575).

220713 is an equidigital number, since it uses as much as digits as its factorization.

220713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73574.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 220713 is about 469.8010217103. The cubic root of 220713 is about 60.4332528910.

Adding to 220713 its reverse (317022), we get a palindrome (537735).

The spelling of 220713 in words is "two hundred twenty thousand, seven hundred thirteen".