986642 has 16 divisors (see below), whose sum is σ = 1550400. Its totient is φ = 470448.

The previous prime is 986641. The next prime is 986659. The reversal of 986642 is 246689.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (986641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4859 + ... + 5057.

It is an arithmetic number, because the mean of its divisors is an integer number (96900).

2⁹⁸⁶⁶⁴² is an apocalyptic number.

986642 is a deficient number, since it is larger than the sum of its proper divisors (563758).

986642 is a wasteful number, since it uses less digits than its factorization.

986642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305.

The product of its digits is 20736, while the sum is 35.

The square root of 986642 is about 993.2985452521. The cubic root of 986642 is about 99.5527358637.

The spelling of 986642 in words is "nine hundred eighty-six thousand, six hundred forty-two".