620470 has 8 divisors (see below), whose sum is σ = 1116864. Its totient is φ = 248184.

The previous prime is 620467. The next prime is 620491. The reversal of 620470 is 74026.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 31014 + ... + 31033.

It is an arithmetic number, because the mean of its divisors is an integer number (139608).

2⁶²⁰⁴⁷⁰ is an apocalyptic number.

620470 is a deficient number, since it is larger than the sum of its proper divisors (496394).

620470 is a wasteful number, since it uses less digits than its factorization.

620470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62054.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 620470 is about 787.6991811599. The cubic root of 620470 is about 85.2917311589.

Adding to 620470 its reverse (74026), we get a palindrome (694496).

The spelling of 620470 in words is "six hundred twenty thousand, four hundred seventy".