986790 has 64 divisors (see below), whose sum is σ = 2801664. Its totient is φ = 217728.

The previous prime is 986779. The next prime is 986801. The reversal of 986790 is 97689.

It is an interprime number because it is at equal distance from previous prime (986779) and next prime (986801).

It is a congruent number.

It is an unprimeable number.

986790 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 31 ways as a sum of consecutive naturals, for example, 7707 + ... + 7833.

It is an arithmetic number, because the mean of its divisors is an integer number (43776).

2⁹⁸⁶⁷⁹⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 986790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1400832).

986790 is an abundant number, since it is smaller than the sum of its proper divisors (1814874).

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

986790 is a wasteful number, since it uses less digits than its factorization.

986790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 986790 is about 993.3730417119. The cubic root of 986790 is about 99.5577133761.

The spelling of 986790 in words is "nine hundred eighty-six thousand, seven hundred ninety".