620766 has 12 divisors (see below), whose sum is σ = 1345032. Its totient is φ = 206916.

The previous prime is 620759. The next prime is 620771. The reversal of 620766 is 667026.

It is a congruent number.

It is an unprimeable number.

620766 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17226 + ... + 17261.

It is an arithmetic number, because the mean of its divisors is an integer number (112086).

2⁶²⁰⁷⁶⁶ is an apocalyptic number.

620766 is an abundant number, since it is smaller than the sum of its proper divisors (724266).

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

620766 is a wasteful number, since it uses less digits than its factorization.

620766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34495 (or 34492 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 620766 is about 787.8870477423. The cubic root of 620766 is about 85.3052920288.

The spelling of 620766 in words is "six hundred twenty thousand, seven hundred sixty-six".