986540 has 24 divisors (see below), whose sum is σ = 2095632. Its totient is φ = 390080.

The previous prime is 986533. The next prime is 986543. The reversal of 986540 is 45689.

It is a super-2 number, since 2×986540² = 1946522343200, which contains 22 as substring.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 986497 and 986506.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 986540.

It is not an unprimeable number, because it can be changed into a prime (986543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1910 + ... + 2370.

It is an arithmetic number, because the mean of its divisors is an integer number (87318).

2⁹⁸⁶⁵⁴⁰ is an apocalyptic number.

It is an amenable number.

986540 is an abundant number, since it is smaller than the sum of its proper divisors (1109092).

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

986540 is a wasteful number, since it uses less digits than its factorization.

986540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577 (or 575 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 986540 is about 993.2471998450. The cubic root of 986540 is about 99.5493051262.

The spelling of 986540 in words is "nine hundred eighty-six thousand, five hundred forty".