620173105 has 16 divisors (see below), whose sum is σ = 757215360. Its totient is φ = 487504512.

The previous prime is 620173069. The next prime is 620173111. The reversal of 620173105 is 501371026.

It is a cyclic number.

It is not a de Polignac number, because 620173105 - 2²⁷ = 485955377 is a prime.

It is a super-2 number, since 2×620173105² = 769229360330682050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 620173105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144957 + ... + 149173.

It is an arithmetic number, because the mean of its divisors is an integer number (47325960).

Almost surely, 2^620173105 is an apocalyptic number.

It is an amenable number.

620173105 is a deficient number, since it is larger than the sum of its proper divisors (137042255).

620173105 is a wasteful number, since it uses less digits than its factorization.

620173105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4728.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 620173105 is about 24903.2749854311. The cubic root of 620173105 is about 852.7812495254.

The spelling of 620173105 in words is "six hundred twenty million, one hundred seventy-three thousand, one hundred five".