620613 has 12 divisors (see below), whose sum is σ = 1024608. Its totient is φ = 354600.

The previous prime is 620603. The next prime is 620623. The reversal of 620613 is 316026.

It is a happy number.

620613 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (620603) and next prime (620623).

It is not a de Polignac number, because 620613 - 2⁶ = 620549 is a prime.

620613 is strictly pandigital in base 7.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4863 + ... + 4988.

It is an arithmetic number, because the mean of its divisors is an integer number (85384).

2⁶²⁰⁶¹³ is an apocalyptic number.

620613 is a gapful number since it is divisible by the number (63) formed by its first and last digit.

It is an amenable number.

620613 is a deficient number, since it is larger than the sum of its proper divisors (403995).

620613 is a wasteful number, since it uses less digits than its factorization.

620613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9864 (or 9861 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 620613 is about 787.7899466228. The cubic root of 620613 is about 85.2982830635.

Adding to 620613 its reverse (316026), we get a palindrome (936639).

The spelling of 620613 in words is "six hundred twenty thousand, six hundred thirteen".