620704 has 48 divisors (see below), whose sum is σ = 1487808. Its totient is φ = 248832.

The previous prime is 620693. The next prime is 620717. The reversal of 620704 is 407026.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3727 + ... + 3889.

It is an arithmetic number, because the mean of its divisors is an integer number (30996).

2⁶²⁰⁷⁰⁴ 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 620704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (743904).

620704 is an abundant number, since it is smaller than the sum of its proper divisors (867104).

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

620704 is a wasteful number, since it uses less digits than its factorization.

620704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 189 counting only the distinct ones).

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

The square root of 620704 is about 787.8477010184. The cubic root of 620704 is about 85.3024519333.

The spelling of 620704 in words is "six hundred twenty thousand, seven hundred four".