620349895 has 32 divisors (see below), whose sum is σ = 841674240. Its totient is φ = 435027840.

The previous prime is 620349893. The next prime is 620349953. The reversal of 620349895 is 598943026.

It is not a de Polignac number, because 620349895 - 2¹ = 620349893 is a prime.

It is a super-2 number, since 2×620349895² = 769667984453022050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620349893) 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 31 ways as a sum of consecutive naturals, for example, 170182 + ... + 173788.

It is an arithmetic number, because the mean of its divisors is an integer number (26302320).

Almost surely, 2^620349895 is an apocalyptic number.

620349895 is a deficient number, since it is larger than the sum of its proper divisors (221324345).

620349895 is a wasteful number, since it uses less digits than its factorization.

620349895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3735.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 620349895 is about 24906.8242656506. The cubic root of 620349895 is about 852.8622746845.

The spelling of 620349895 in words is "six hundred twenty million, three hundred forty-nine thousand, eight hundred ninety-five".