622713 has 16 divisors (see below), whose sum is σ = 1022336. Its totient is φ = 328320.

The previous prime is 622709. The next prime is 622723. The reversal of 622713 is 317226.

It is a happy number.

It is not a de Polignac number, because 622713 - 2² = 622709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 622713.

It is not an unprimeable number, because it can be changed into a prime (622723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 868 + ... + 1413.

It is an arithmetic number, because the mean of its divisors is an integer number (63896).

2⁶²²⁷¹³ is an apocalyptic number.

It is an amenable number.

622713 is a deficient number, since it is larger than the sum of its proper divisors (399623).

622713 is a wasteful number, since it uses less digits than its factorization.

622713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2304.

The product of its digits is 504, while the sum is 21.

The square root of 622713 is about 789.1216636236. The cubic root of 622713 is about 85.3943841408.

Adding to 622713 its reverse (317226), we get a palindrome (939939).

It can be divided in two parts, 62 and 2713, that added together give a triangular number (2775 = T₇₄).

The spelling of 622713 in words is "six hundred twenty-two thousand, seven hundred thirteen".