620776 has 32 divisors (see below), whose sum is σ = 1290240. Its totient is φ = 278208.

The previous prime is 620773. The next prime is 620777. The reversal of 620776 is 677026.

620776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cake number, because a cake can be divided into 620776 parts by 155 planar cuts.

It is not an unprimeable number, because it can be changed into a prime (620771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4825 + ... + 4951.

It is an arithmetic number, because the mean of its divisors is an integer number (40320).

2⁶²⁰⁷⁷⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 620776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (645120).

620776 is an abundant number, since it is smaller than the sum of its proper divisors (669464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620776 is a wasteful number, since it uses less digits than its factorization.

620776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 620776 is about 787.8933938040. The cubic root of 620776 is about 85.3057500910.

The spelling of 620776 in words is "six hundred twenty thousand, seven hundred seventy-six".