620512 has 12 divisors (see below), whose sum is σ = 1221696. Its totient is φ = 310240.

The previous prime is 620507. The next prime is 620519. The reversal of 620512 is 215026.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9664 + ... + 9727.

It is an arithmetic number, because the mean of its divisors is an integer number (101808).

2⁶²⁰⁵¹² is an apocalyptic number.

It is an amenable number.

620512 is a deficient number, since it is larger than the sum of its proper divisors (601184).

620512 is a wasteful number, since it uses less digits than its factorization.

620512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19401 (or 19393 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 620512 is about 787.7258406324. The cubic root of 620512 is about 85.2936555989.

Adding to 620512 its reverse (215026), we get a palindrome (835538).

The spelling of 620512 in words is "six hundred twenty thousand, five hundred twelve".