620021105 has 8 divisors (see below), whose sum is σ = 811664064. Its totient is φ = 450924400.

The previous prime is 620021033. The next prime is 620021113. The reversal of 620021105 is 501120026.

620021105 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 620021105 - 2¹² = 620017009 is a prime.

It is a Duffinian number.

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, 5636501 + ... + 5636610.

It is an arithmetic number, because the mean of its divisors is an integer number (101458008).

Almost surely, 2^620021105 is an apocalyptic number.

It is an amenable number.

620021105 is a deficient number, since it is larger than the sum of its proper divisors (191642959).

620021105 is a wasteful number, since it uses less digits than its factorization.

620021105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11273127.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 620021105 is about 24900.2229909694. Note that the first 3 decimals coincide. The cubic root of 620021105 is about 852.7115736343.

The spelling of 620021105 in words is "six hundred twenty million, twenty-one thousand, one hundred five".