620650 has 12 divisors (see below), whose sum is σ = 1154502. Its totient is φ = 248240.

The previous prime is 620647. The next prime is 620657. The reversal of 620650 is 56026.

620650 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 3 ways, for example, as 400689 + 219961 = 633^2 + 469^2 .

It is not an unprimeable number, because it can be changed into a prime (620657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6157 + ... + 6256.

2⁶²⁰⁶⁵⁰ is an apocalyptic number.

620650 is a deficient number, since it is larger than the sum of its proper divisors (533852).

620650 is a wasteful number, since it uses less digits than its factorization.

620650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12425 (or 12420 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 620650 is about 787.8134296901. The cubic root of 620650 is about 85.2999781476.

Adding to 620650 its reverse (56026), we get a palindrome (676676).

The spelling of 620650 in words is "six hundred twenty thousand, six hundred fifty".