620493 has 8 divisors (see below), whose sum is σ = 835488. Its totient is φ = 409584.

The previous prime is 620491. The next prime is 620507. The reversal of 620493 is 394026.

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

It is not a de Polignac number, because 620493 - 2¹ = 620491 is a prime.

620493 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620491) 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, 646 + ... + 1287.

It is an arithmetic number, because the mean of its divisors is an integer number (104436).

2⁶²⁰⁴⁹³ is an apocalyptic number.

It is an amenable number.

620493 is a deficient number, since it is larger than the sum of its proper divisors (214995).

620493 is a wasteful number, since it uses less digits than its factorization.

620493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 620493 is about 787.7137805066. The cubic root of 620493 is about 85.2927850297.

The spelling of 620493 in words is "six hundred twenty thousand, four hundred ninety-three".