986728 has 8 divisors (see below), whose sum is σ = 1850130. Its totient is φ = 493360.

The previous prime is 986719. The next prime is 986729. The reversal of 986728 is 827689.

986728 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 only one way, i.e., 574564 + 412164 = 758^2 + 642^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (986729) by changing a digit.

986728 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 as a sum of consecutive naturals, namely, 61663 + ... + 61678.

2⁹⁸⁶⁷²⁸ is an apocalyptic number.

It is an amenable number.

986728 is a deficient number, since it is larger than the sum of its proper divisors (863402).

986728 is a wasteful number, since it uses less digits than its factorization.

986728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123347 (or 123343 counting only the distinct ones).

The product of its digits is 48384, while the sum is 40.

The square root of 986728 is about 993.3418344155. The cubic root of 986728 is about 99.5556282625. Note that the first 3 decimals are identical.

It can be divided in two parts, 98 and 6728, that multiplied together give a square (659344 = 812²).

The spelling of 986728 in words is "nine hundred eighty-six thousand, seven hundred twenty-eight".