983540 has 12 divisors (see below), whose sum is σ = 2065476. Its totient is φ = 393408.

The previous prime is 983533. The next prime is 983557. The reversal of 983540 is 45389.

983540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 274576 + 708964 = 524^2 + 842^2 .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 983540.

It is an unprimeable number.

983540 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 3 ways as a sum of consecutive naturals, for example, 24569 + ... + 24608.

It is an arithmetic number, because the mean of its divisors is an integer number (172123).

2⁹⁸³⁵⁴⁰ is an apocalyptic number.

It is an amenable number.

983540 is an abundant number, since it is smaller than the sum of its proper divisors (1081936).

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

983540 is a wasteful number, since it uses less digits than its factorization.

983540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49186 (or 49184 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 983540 is about 991.7358519283. The cubic root of 983540 is about 99.4482951485.

The spelling of 983540 in words is "nine hundred eighty-three thousand, five hundred forty".