620039285 has 16 divisors (see below), whose sum is σ = 770655600. Its totient is φ = 478334976.

The previous prime is 620039243. The next prime is 620039291. The reversal of 620039285 is 582930026.

620039285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 99880036 + 520159249 = 9994^2 + 22807^2 .

It is a cyclic number.

It is not a de Polignac number, because 620039285 - 2¹⁶ = 619973749 is a prime.

It is a super-2 number, since 2×620039285² = 768897429886622450, which contains 22 as substring.

It is a congruent number.

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, 142421 + ... + 146709.

It is an arithmetic number, because the mean of its divisors is an integer number (48165975).

Almost surely, 2^620039285 is an apocalyptic number.

It is an amenable number.

620039285 is a deficient number, since it is larger than the sum of its proper divisors (150616315).

620039285 is a wasteful number, since it uses less digits than its factorization.

620039285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5320.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 620039285 is about 24900.5880452651. The cubic root of 620039285 is about 852.7199078371.

The spelling of 620039285 in words is "six hundred twenty million, thirty-nine thousand, two hundred eighty-five".