620007613 has 4 divisors (see below), whose sum is σ = 620182368. Its totient is φ = 619832860.

The previous prime is 620007581. The next prime is 620007623. The reversal of 620007613 is 316700026.

620007613 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 620007613 - 2⁵ = 620007581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620007623) 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, 81943 + ... + 89188.

It is an arithmetic number, because the mean of its divisors is an integer number (155045592).

Almost surely, 2^620007613 is an apocalyptic number.

It is an amenable number.

620007613 is a deficient number, since it is larger than the sum of its proper divisors (174755).

620007613 is a wasteful number, since it uses less digits than its factorization.

620007613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174754.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 620007613 is about 24899.9520682270. The cubic root of 620007613 is about 852.7053884319.

Adding to 620007613 its reverse (316700026), we get a palindrome (936707639).

The spelling of 620007613 in words is "six hundred twenty million, seven thousand, six hundred thirteen".