603920 has 20 divisors (see below), whose sum is σ = 1404300. Its totient is φ = 241536.

The previous prime is 603919. The next prime is 603923. The reversal of 603920 is 29306.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 369664 + 234256 = 608^2 + 484^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 603892 and 603901.

It is not an unprimeable number, because it can be changed into a prime (603923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3695 + ... + 3854.

It is an arithmetic number, because the mean of its divisors is an integer number (70215).

2⁶⁰³⁹²⁰ is an apocalyptic number.

It is an amenable number.

603920 is an abundant number, since it is smaller than the sum of its proper divisors (800380).

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

603920 is a wasteful number, since it uses less digits than its factorization.

603920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7562 (or 7556 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 603920 is about 777.1228989034. The cubic root of 603920 is about 84.5265488512.

The spelling of 603920 in words is "six hundred three thousand, nine hundred twenty".