620362613 has 8 divisors (see below), whose sum is σ = 668856888. Its totient is φ = 571978944.

The previous prime is 620362579. The next prime is 620362621. The reversal of 620362613 is 316263026.

It can be written as a sum of positive squares in 4 ways, for example, as 100841764 + 519520849 = 10042^2 + 22793^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 620362613 - 2⁶ = 620362549 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 (626362613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15806 + ... + 38607.

It is an arithmetic number, because the mean of its divisors is an integer number (83607111).

Almost surely, 2^620362613 is an apocalyptic number.

It is an amenable number.

620362613 is a deficient number, since it is larger than the sum of its proper divisors (48494275).

620362613 is a wasteful number, since it uses less digits than its factorization.

620362613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55303.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 620362613 is about 24907.0795758957. The cubic root of 620362613 is about 852.8681029160.

The spelling of 620362613 in words is "six hundred twenty million, three hundred sixty-two thousand, six hundred thirteen".