620748 has 36 divisors (see below), whose sum is σ = 1609608. Its totient is φ = 201600.

The previous prime is 620743. The next prime is 620759. The reversal of 620748 is 847026.

620748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (620743) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1348 + ... + 1748.

2⁶²⁰⁷⁴⁸ 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 620748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (804804).

620748 is an abundant number, since it is smaller than the sum of its proper divisors (988860).

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

620748 is a wasteful number, since it uses less digits than its factorization.

620748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 620748 is about 787.8756247023. The cubic root of 620748 is about 85.3044675044.

The spelling of 620748 in words is "six hundred twenty thousand, seven hundred forty-eight".