620728233 has 32 divisors (see below), whose sum is σ = 898867200. Its totient is φ = 379728000.

The previous prime is 620728219. The next prime is 620728237. The reversal of 620728233 is 332827026.

It is not a de Polignac number, because 620728233 - 2¹⁰ = 620727209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 620728194 and 620728203.

It is not an unprimeable number, because it can be changed into a prime (620728237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 352008 + ... + 353766.

It is an arithmetic number, because the mean of its divisors is an integer number (28089600).

Almost surely, 2^620728233 is an apocalyptic number.

It is an amenable number.

620728233 is a deficient number, since it is larger than the sum of its proper divisors (278138967).

620728233 is a wasteful number, since it uses less digits than its factorization.

620728233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1973.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 620728233 is about 24914.4181750247. The cubic root of 620728233 is about 853.0356202086.

The spelling of 620728233 in words is "six hundred twenty million, seven hundred twenty-eight thousand, two hundred thirty-three".