620535243 has 16 divisors (see below), whose sum is σ = 867974400. Its totient is φ = 393795360.

The previous prime is 620535221. The next prime is 620535247. The reversal of 620535243 is 342535026.

It is not a de Polignac number, because 620535243 - 2⁵ = 620535211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 620535243.

It is not an unprimeable number, because it can be changed into a prime (620535247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44053 + ... + 56406.

It is an arithmetic number, because the mean of its divisors is an integer number (54248400).

Almost surely, 2^620535243 is an apocalyptic number.

620535243 is a deficient number, since it is larger than the sum of its proper divisors (247439157).

620535243 is a wasteful number, since it uses less digits than its factorization.

620535243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100562.

The product of its (nonzero) digits is 21600, while the sum is 30.

The square root of 620535243 is about 24910.5448153990. The cubic root of 620535243 is about 852.9472055585.

The spelling of 620535243 in words is "six hundred twenty million, five hundred thirty-five thousand, two hundred forty-three".