620459 has 8 divisors (see below), whose sum is σ = 715008. Its totient is φ = 527400.

The previous prime is 620441. The next prime is 620461. The reversal of 620459 is 954026.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 620459 - 2¹⁶ = 554923 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 620459.

It is not an unprimeable number, because it can be changed into a prime (620429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 764 + ... + 1350.

It is an arithmetic number, because the mean of its divisors is an integer number (89376).

2⁶²⁰⁴⁵⁹ is an apocalyptic number.

620459 is a deficient number, since it is larger than the sum of its proper divisors (94549).

620459 is a wasteful number, since it uses less digits than its factorization.

620459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 745.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 620459 is about 787.6921987680. The cubic root of 620459 is about 85.2912271245.

The spelling of 620459 in words is "six hundred twenty thousand, four hundred fifty-nine".