620505395 has 8 divisors (see below), whose sum is σ = 746465760. Its totient is φ = 495164800.

The previous prime is 620505377. The next prime is 620505407. The reversal of 620505395 is 593505026.

620505395 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 not a de Polignac number, because 620505395 - 2¹⁰ = 620504371 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152735 + ... + 156744.

It is an arithmetic number, because the mean of its divisors is an integer number (93308220).

Almost surely, 2^620505395 is an apocalyptic number.

620505395 is a deficient number, since it is larger than the sum of its proper divisors (125960365).

620505395 is a wasteful number, since it uses less digits than its factorization.

620505395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309885.

The product of its (nonzero) digits is 40500, while the sum is 35.

The square root of 620505395 is about 24909.9457044772. The cubic root of 620505395 is about 852.9335296356.

The spelling of 620505395 in words is "six hundred twenty million, five hundred five thousand, three hundred ninety-five".