620573717 has 8 divisors (see below), whose sum is σ = 641245440. Its totient is φ = 599942880.

The previous prime is 620573693. The next prime is 620573747. The reversal of 620573717 is 717375026.

620573717 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 620573717 - 2⁸ = 620573461 is a prime.

It is a super-2 number, since 2×620573717² = 770223476462392178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620573747) 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, 22334 + ... + 41712.

It is an arithmetic number, because the mean of its divisors is an integer number (80155680).

Almost surely, 2^620573717 is an apocalyptic number.

It is an amenable number.

620573717 is a deficient number, since it is larger than the sum of its proper divisors (20671723).

620573717 is a wasteful number, since it uses less digits than its factorization.

620573717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20443.

The product of its (nonzero) digits is 61740, while the sum is 38.

The square root of 620573717 is about 24911.3170466758. The cubic root of 620573717 is about 852.9648331431.

The spelling of 620573717 in words is "six hundred twenty million, five hundred seventy-three thousand, seven hundred seventeen".