620034613 has 6 divisors (see below), whose sum is σ = 681525782. Its totient is φ = 563667720.

The previous prime is 620034577. The next prime is 620034629. The reversal of 620034613 is 316430026.

It can be written as a sum of positive squares in only one way, i.e., 550512369 + 69522244 = 23463^2 + 8338^2 .

It is not a de Polignac number, because 620034613 - 2⁹ = 620034101 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 (620034113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2562006 + ... + 2562247.

Almost surely, 2^620034613 is an apocalyptic number.

It is an amenable number.

620034613 is a deficient number, since it is larger than the sum of its proper divisors (61491169).

620034613 is a wasteful number, since it uses less digits than its factorization.

620034613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5124275 (or 5124264 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 620034613 is about 24900.4942320429. The cubic root of 620034613 is about 852.7177660817.

Adding to 620034613 its reverse (316430026), we get a palindrome (936464639).

The spelling of 620034613 in words is "six hundred twenty million, thirty-four thousand, six hundred thirteen".